Foam Sclerotherapy Injections



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Simple quick and affordable treatment from £550
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Suitable for certain mild varicose or blue veins
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Acts like a glue and seals of the vein with no discomfort
Foam sclerotherapy before and after results

Before after photos only 2 weeks apart after one session treatment with foam sclerotherapy for varicose and thread veins.

Foam sclerotherapy injections treatment

Ideal for smaller varicose veins or unsightly blue veins on the legs. Available in London with experienced Vascular Surgeon

Foam or Injection Sclerotherapy

Foam injections or sclerotherapy are ideal for smaller varicose veins or unsightly blue veins on the legs.  It is a simple quick procedure that only has a tiny injection at the beginning that then seals off the veins and takes less than 20 minutes in most cases.

After the treatment patients are advised to wear support stockings or tights for up to a week afterwards but can carry on with normal daily activities.

Complete removal of the veins may take a few sessions a few weeks apart.

Large and Bulging Varicose Veins

For larger varicose veins, laser varicose vein removal may be more appropriate.

Thread Veins

Thread veins (or spider veins) are thin veins on the surface of the skin that rarely cause any problems other than being cosmetically unsightly. These are treated by microinjections that you can hardly feel.

The Foam Sclerotherapy Procedure

Firstly, a local anaesthetic is carefully administered to ensure that the procedure is pain-free and comfortable throughout.

Then, a special solution is mixed with air creating a foam which the surgeon will inject very carefully and precisely into the affected vein. If the vein is very deep, then the surgeon may use the ultrasound scanner in order to check that the injection is being placed in exactly the right area.

The foam will immediately start to react. Any blood within the vein will be pushed out. The vein wall itself will become inflamed and ‘sticky’, eventually closing off the vein.

Following the procedure, the varicose vein will shrink and disappear.

The procedure can be done on the same day as the consultation and takes less than 30 minutes. It is carried out under local anaesthesia, so patients do not feel any pain during treatment.

After treatment, a review appointment will be scheduled to check whether further treatment is necessary, as on occasion it might take up to 3 sessions to achieve complete closure of the veins.


Dressings In Clinic

After the procedure, a pressure bandage or dressing will be applied to the leg(s) to ensure that blood cannot seep back in and the walls are compressed together.

This must be worn for 12-24 hours after the injections during which time showering/bathing must be avoided.

Dressings At Home

After the initial dressing is removed, you will need to wear compression stockings for 3-4 weeks for optimum healing and best results.

What to Expect

Expect to feel a bit sore for a few days where the vein has been treated.

It is important to remain mobile with gentle activity. Don’t be tempted to rest too much – a regular walk is helpful to promote good circulation.

You will need to avoid prolonged standing, kneeling, squatting, bending or strenuous exercise for 4-6 weeks.

Elevate your leg when sitting for any length of time.

Exclusive Tumescent Foam Sclerotherapy


Tumescent Foam Sclerotherapy is a procedure which was developed by Vascular Surgeon Mr Parameswaran Sridhar.

This is a brand new ‘all in one’ treatment protocol which was designed to tackle not only the most obvious varicose veins but also those smaller ones too plus larger thread veins.

Previously this thoroughness of treatment would require two treatment sessions rather than one and the use of a couple of different techniques. In one single treatment, Tumescent Foam Sclerotherapy carries out both:

  • Endovenous Laser Ablation (EVLA) – laser treatment for the larger varicose veins
  • Foam sclerotherapy – a chemical treatment to treat large thread veins and smaller varicose veins

Tumescent Foam Sclerotherapy is exclusively available at Cosmedics’ London Vein Centres.

Tumescent Foam Sclerotherapy Advantages

Advantages of this approach are numerous:

  • One single treatment session is more convenient
  • Treatment is faster when combined – takes around an hour per leg
  • Tumescent Foam Sclerotherapy provides a more thorough result than either of the procedures alone
  • Less painful, as only one incision required and a smaller amount of foam solution is used
  • Targeted and accurate treatment
  • Less inflammation and discomfort
  • Quicker healing
  • Day case procedure

Contact Our Dedicated Veins Advisor

Email or telephone 020 7386 0464.

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Treatment Time

30 minutes

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Recovery Time

Most patients see a difference straightaway, but it can take about 6 weeks to see the finished result

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Acts like a glue and seals off the vein with no discomfort

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Results Duration


Foam Sclerotherapy Costs

Foam Sclerotherapy Treatment 1 Leg2 Legs
New Consultation & Scan £200£200
Foam sclerotherapy
EVLA Endovenous Laser Ablation including phlebectomy
(All veins)
Venablock glue treatment
(all veins)
Follow up consultations after treatment£175£175

Foam Sclerotherapy Consultation Fee

Consultations with our Vascular Surgeon cost £200. This includes a free ultrasound scan at the same appointment. A treatment plan and associated costs can then be discussed once the scan results are known. 

Prices are a guide and the exact cost of treatment can only be determined once the surgeon has examined you in person.

Call 0207 386 0464 OR email for advice and help.

How Do I Book an Appointment?

Our medical advisors would be happy to make an appointment for you:

The consultation fee is payable on booking. We have a 48-hour cancellation policy.

Book Online

Varicose Vein Videos

Foam Sclerotherapy - Quick Injection Treatment for Varicose Veins
Foam Sclerotherapy - Quick Injection Treatment for Varicose Veins
Varicose Veins Treatment in London - Private Day Case Vascular Surgery
Varicose Veins Treatment in London - Private Day Case Vascular Surgery
Vein treatment information - Varicose Veins vs Thread Veins
Vein treatment information - Varicose Veins vs Thread Veins

What our patients say

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Foam Sclerotherapy FAQ: Questions & Answers

Does foam sclerotherapy hurt?

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The procedure sounds uncomfortable, but as it is done under local anaesthetic so you won’t feel any pain after the initial ‘pin prick’ of the injection itself.

After the procedure, when the anaesthetic has worn off, you may feel some soreness or discomfort. Paracetamol will relieve this.

How long does foam sclerotherapy take?

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The foam sclerotherapy injections take around 30 minutes.

How will the veins look after foam sclerotherapy?

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At first, it is relatively common to see some localised swelling, redness or bruising. This passes in a week or two as the legs heal.

Will foam sclerotherapy results last?

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Yes, the procedure has an excellent success rate with permanent results.

How soon will I see results after foam sclerotherapy?

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Most patients see a difference straight away, but it can take about 6 weeks to see the finished result.

Are there any side effects after foam sclerotherapy?

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There are a few potential side-effects to foam sclerotherapy you should be aware of, but you may not experience any of these:

  • Bruising – Usually little to no bruising occurs. If you do experience bruising it will pass in a few weeks
  • Pigmentation – Affects 20-30% of patients, especially those with fair skin and with large
    varicose veins near to the skin surface. This usually fades over a few months. Only permanent in rare cases
  • Lumpiness – disappears over a few months, depending on the size of the varicose veins. Only permanent in rare cases
  • Thrombophlebitis: A painful red lump may develop following treatment of especially large/lumpy varicose veins. Usually treated with anti-inflammatory medication (e.g. ibuprofen gel and/or tablets). Rarely the surgeon may carry out a further small procedure to remove clotting

Your surgeon will make sure you are fully aware of the risks and likelihood of them occurring.

Do I have to wear support stockings?

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Normally bandages are worn for a couple of days, then surgical support/compression stockings for 1-4 weeks after that. We will recommend suitable stockings for you to wear during your recovery.

We will give further advice on this during your consultation.

Which clinics offer foam sclerotherapy?

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We offer appointments and treatment at selected London clinic locations:

Who carries out foam sclerotherapy treatment?

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This treatment is carried out by our Vascular Surgeon, Mr Parameswaran.

What are the alternatives to foam sclerotherapy?

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We offer a comprehensive range of treatments for varicose veins and thread veins.

For larger varicose veins, you might be advised to choose

We offer Thread Vein Treatment for smaller veins.


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For detailed information:


Find your nearest Foam Sclerotherapy clinic

Harley Street

41 Harley St

0207 386 0464

4 Disraeli Road
SW15 2DS

0207 386 0464

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