Sclerotherapy for varicose veins raises practical questions: how to prepare, what the session feels like and which changes may occur afterwards. The answers depend on the veins being treated and the technique selected. Treating small surface vessels is not identical to treating another venous pattern. Information about Medivás pressure sclerotherapy should therefore be supplemented by an individual clinical recommendation.
This guide follows the process from assessment to review. It is intended to help you participate in the decision and understand which instructions you need before leaving the clinic. It does not replace the treating professional's advice: the product, extent of treatment, medical history and response may all affect preparation and aftercare.
What sclerotherapy involves
The technique uses a substance that acts on the wall of a selected vein to achieve closure and subsequent change. Liquid or foam may be used according to the indication and medical judgement. Ultrasound can form part of the procedure when vessels need to be monitored beyond what can be seen directly through the skin.
It should not be mistaken for a simple cosmetic injection without clinical implications. Treatment requires an understanding of anatomy, appropriate vessel selection and review of factors affecting safety. Choosing the agent and its application is a professional responsibility. General descriptions of the technique cannot determine doses or provide a basis for reproducing it outside an appropriate healthcare setting.
Which medical details should be discussed
The clinician needs to know about allergies, previous clots, earlier vein treatments and current medicines. Pregnancy, breastfeeding or possible pregnancy should also be discussed, together with any new symptoms since the first assessment. If you previously reacted to sclerotherapy, explain what happened and bring the report where possible.
Do not independently stop anticoagulants, antiplatelet medicines or other prescribed treatment. Decisions depend on why the medicine is needed and what procedure is planned. Likewise, do not add supplements or medicines to prevent bruising without checking first. A complete list, including non-prescription products, is more useful than trying to select only the items that seem important. Changes since the original consultation should be mentioned before the session begins.
Preparing for the session and the journey home
Confirm instructions about clothing, products applied to the skin and compression garments if prescribed. Ask whether to bring the stocking and whether its fit will be checked. A garment you already own may not suit the current plan. If mobility is limited, organise support and tell the clinic in advance so that practical needs can be considered.
It is also helpful to know how you should travel home and what activity is advised that day. A general recommendation to walk should not be interpreted as permission for strenuous exercise. Request instructions specific to the treatment and your circumstances. Keeping the day reasonably flexible may be useful even when prolonged time away from work is not expected. Preparation includes understanding the plan, not just arriving for the injection.
Sensations and local changes that may occur
Needle pricks or local discomfort may be felt during application. Afterwards, bruising, redness, tenderness, firmness or pigmentation changes can occur, with a variable course. The team should explain what is expected in your case and how to contact them if the intensity or duration differs from that advice.
Results cannot be judged solely at the end of the session. Early appearance may differ from the eventual outcome. Some vessels may require additional treatment, while others need observation. Avoid manipulating firm areas, puncturing them or applying remedies intended to speed the process. If an area needs review or intervention, that decision belongs with the treating professional and should be carried out under appropriate conditions.
Sun exposure, exercise and compression afterwards
Aftercare depends on the technique and treated area. Sun exposure, intense heat, exercise and compression may require specific recommendations. Rather than copying someone else's timetable, ask for written advice explaining what to do and when different activities can resume. The plan may differ between a small local session and more extensive treatment.
Small visible veins may be associated with an important cosmetic goal. Even so, an approaching event should not displace sensible aftercare. The information on spider veins and reticular veins helps explain why session numbers and recovery can differ between areas that initially seem similar. Allowing the appropriate time for change is part of assessing the result fairly.
Deciding whether another session is needed
The decision depends on response, remaining vessels and the original goal. Repeating treatment too early can make progress harder to assess. Conversely, a new symptom should not automatically wait until the next scheduled appointment. The team should distinguish routine follow-up from contact about a possible problem and make both routes clear.
Recording changes can be helpful, provided it does not become constant, anxious monitoring. An occasional photograph in similar lighting is more comparable than many images taken with different filters or positions. If symptoms rather than appearance were the main concern, record their effect on activities that previously caused difficulty. The review can then consider practical improvement as well as the appearance of the treated area.
Understanding what happens inside the veins
Blood reaches the legs through the arteries and returns towards the heart through superficial and deep veins. Contractions of the calf muscles help move it upwards, while small valves encourage flow in the right direction. When some valves no longer close effectively, blood can flow backwards through a particular segment. This is called venous reflux and can contribute to increased pressure within parts of the venous network.
The vein visible at the surface does not necessarily explain the whole problem. It may be a branch connected to another vein with reflux, or a small surface change without significant disease in the main superficial trunks. Counting visible veins or looking at a photograph therefore cannot establish the right treatment. An examination connects the appearance with symptoms, distribution and, where appropriate, ultrasound findings.
It is also useful to separate cosmetic concerns from functional effects. Someone may be troubled by small visible veins despite having very little discomfort. Another person may experience heaviness or swelling even though changes at the surface look relatively modest. Both deserve a clear explanation, but they do not automatically require the same investigation, priority or intervention. Symptom intensity is not a precise measurement of the risk of complications either.
Family history, pregnancy, age, previous vascular events and long periods of immobility may all contribute to the overall picture. They do not establish a single cause, and they do not mean that the person has done something wrong. The consultation identifies which factors matter in that individual situation and which can realistically be changed. Understanding this distinction makes it easier to see why everyday measures may ease discomfort without removing an established vein, while a procedure targets a particular part of the circulation. Neither approach should be judged only by how a leg looks in one photograph.
What a complete vascular assessment contributes
An assessment begins with how the problem started, what changes the symptoms and how it affects everyday life. Useful details include whether one leg or both are affected, whether discomfort builds towards the evening, whether walking helps and whether anything has changed recently. Previous blood clots, procedures, pregnancies, medicines and other health conditions are also relevant to circulation and to the safety of possible treatment.
The examination may include visible veins, swelling, skin colour, temperature and skin condition. The clinician may check pulses when this helps assess arterial circulation. Leg discomfort is not always caused by veins: muscle, joint, nerve and lymphatic problems can produce overlapping symptoms. Several causes may exist together, in which case a particularly clear discussion about expectations is important before choosing an intervention.
Duplex ultrasound combines images of the structures with information about blood flow. When indicated, it can assess whether veins are open, the direction of flow and possible sites of reflux. Its purpose is not simply to add a routine test. It should answer questions that could change the diagnosis or the choice of treatment. The findings must be interpreted alongside the history and examination, rather than as a collection of isolated measurements.
Before making a decision, ask for an understandable explanation: which vein is involved, whether the symptoms fit that finding and what treatment is expected to achieve. It is equally reasonable to ask which symptoms might remain if they have a different cause. A sound decision includes alternatives, sometimes including observation. The appointment should end with a practical plan, a reason for each next step and clear advice about when to return. Knowing what uncertainty remains is useful information, not a sign that the consultation has failed to provide an answer.
Comparing conservative care and procedures
Conservative measures and procedures address different goals. Suitable activity, position changes, skin care and prescribed compression may help manage discomfort. They do not necessarily correct the reflux responsible for the problem or remove an established varicose vein. Where intervention is appropriate, the choice depends on anatomy, symptoms, medical history and the person's informed preferences, rather than on a procedure name alone.
Options used for venous disease include thermal endovenous techniques, sclerotherapy and selected surgical approaches. No single method suits every vein. Its location, course, size, relationship to skin and nerves, and the condition of the deep circulation can all change the recommendation. The fact that a technique is available at a clinic does not mean that every patient attending that clinic should receive it.
Useful comparisons cover the main objective, anaesthesia, expected number of visits, likely discomfort, temporary restrictions and follow-up. When a price is provided after assessment, it should explain what is included: investigations, the procedure, materials, reviews and any potential additional treatment. A quotation does not replace a clinical indication, and it should not be interpreted as a promise of a complete or permanent result.
Possible unwanted effects should also be discussed. Depending on the procedure, these may include bruising, inflammation, pigmentation, local discomfort or altered sensation. Less common complications can require medical attention. The clinician should explain the risks relevant to the specific technique and individual circumstances rather than provide an identical list for every treatment. Asking about alternatives, including not intervening, helps put the expected benefit in perspective. Informed consent is an individual conversation as well as a document. Having time to understand the explanation and ask questions is part of that process, even when the proposed treatment is performed as an outpatient procedure.
Building a routine you can maintain
Small, repeatable changes are often more useful than an ambitious routine that cannot fit everyday life. Alternating sitting with movement, walking within personal ability and avoiding long uninterrupted periods of stillness can help leg comfort. Where mobility is limited, the plan should accommodate that limitation instead of imposing a universal step count or a fixed exercise target on everyone.
Ankle movement and calf muscle activity contribute to the muscle pump that supports venous return. Brief movement breaks can be incorporated into a working day when appropriate for the person's clinical situation. Every break does not need to become an intense workout. Gradual, tolerable activity is usually easier to sustain than occasional strenuous efforts followed by prolonged inactivity, and the routine should remain practical when work or family responsibilities change.
When compression is prescribed, the indication and fit matter. Greater pressure does not automatically mean greater benefit. Size, skin condition, the ability to put the garment on and possible arterial disease all need consideration. A garment causing substantial pain, marked colour change or skin injury should not simply be endured without advice. Copying a relative's prescription or extending a post-procedure regimen independently is not a reliable way to choose suitable compression.
Daily care also means noticing the condition of the skin and paying attention to new changes. Rest and comfortable leg elevation may ease some symptoms, but they do not replace assessment when swelling persists or increases. These measures support a clinical plan. They do not guarantee that new varicose veins will never develop, and they do not mean that every symptom should be managed through lifestyle changes alone. A useful routine is one that supports function, can be maintained and has clear limits about when further professional advice is needed.
Warning signs that change the urgency
Not every leg problem should wait for a routine appointment. New swelling that is clearly greater in one leg, especially with pain, warmth or a change in colour, needs prompt medical assessment. Having known varicose veins does not make it safe to attribute every new symptom to them. A photograph or a messaging conversation cannot rule out a deep vein thrombosis either.
Breathlessness, chest pain, fainting or coughing up blood require urgent medical help. In Spain, the emergency number is 112. Trying to manage these symptoms by walking, massaging the leg or taking someone else's medication is not appropriate. An acute problem needs assessment on its own merits, even when a person already has a familiar explanation for occasional leg discomfort.
Bleeding from a varicose vein also calls for action. Lie down, raise the leg if possible and apply firm direct pressure with clean material over the bleeding point. Urgent help is needed if bleeding does not stop, is substantial or the person feels unwell. Even if it settles, the cause should be reviewed to reduce the risk of another episode. A homemade tourniquet should not be used.
Other changes can justify urgent or priority assessment: a wound that is not healing, a red and hot area accompanied by fever or increasing pain, or a foot that suddenly becomes cold, pale and painful. These examples explain the limits of general information; they are not a checklist for making a diagnosis at home. If the seriousness is uncertain, contact a healthcare service able to advise on urgency. A clinic's ordinary appointment channel is not a substitute for emergency services, and waiting for a reply to a non-urgent form is not appropriate when potentially serious symptoms are developing.
Assessing progress without promises of instant results
Follow-up should compare changes that matter to the agreed goal. If the priority was less heaviness, useful questions concern how a working day feels, whether walking is easier and whether rest is more comfortable. If appearance was also a goal, photographs taken under similar conditions may help document change. None of these observations replaces examination when new symptoms develop or the pattern changes unexpectedly.
Some changes after a procedure cannot be interpreted reliably in the first few days. Swelling, bruising or areas of firmness may temporarily affect appearance. The treating team should explain the expected course for the actual technique used and which findings warrant contact before the planned review. It is unwise to assume that everything is normal because treatment was minimally invasive, just as a small bruise does not by itself demonstrate treatment failure.
Reviews may involve a clinical assessment and, where indicated, repeat ultrasound. Their timing should not be copied from someone else's experience because the procedure, medical history and findings all matter. Keeping the initial report, details of the technique and written instructions supports continuity of care. If another centre is consulted later, those documents can reduce incomplete interpretation and unnecessary duplication of investigations.
Venous disease can change over time. Treating one vein does not remove the underlying tendency to develop other abnormalities, and a newly visible vein does not automatically show that previous care was performed incorrectly. The useful question is what has changed and whether there is a current reason to act. Reasonable follow-up combines realistic expectations, access to review when needed and respect for observation when an intervention is not clinically necessary. Progress is best judged over an appropriate period and against a clear baseline, rather than against an advertisement or another person's photograph.
Frequently asked questions about recovery
### Does sclerotherapy guarantee that no new veins will appear? No. It can treat selected vessels but does not eliminate every tendency to develop further changes. A new vein may reflect progression of venous disease and should be assessed in context. Information before treatment should avoid universal or permanent-result promises and explain the possible need for later review.
Is a firm cord always normal afterwards?
Some local changes can follow vein treatment, but not every firm area can be labelled normal without context. Increasing pain, substantial inflammation or additional symptoms should be discussed with the team. Do not massage or manipulate the area in an attempt to manage it independently.
Can I travel immediately afterwards?
Discuss the mode of transport, journey length and your history before scheduling treatment. A long journey may influence timing and advice. Recommendations are individual and should not be inferred from another person's uneventful trip. Mention both the outward journey and the planned return when organising the procedure.
What written information should I receive?
Details of the procedure, aftercare, compression advice if relevant, signs requiring attention and the review date or criteria. You can request an assessment at Medivás to discuss which options fit the venous pattern and your goals before making a treatment decision.
Sources and further reading
- NHS · Varicose veins
- NICE CG168 · Varicose veins: diagnosis and management
- ESVS · Chronic venous disease guidelines
Educational content by Clínica Medivás. It does not provide an individual diagnosis or replace a consultation.
This content is for information only and does not replace an individual medical assessment. Seek appropriate medical care for acute or worrying symptoms.
