Foam Sclerotherapy

  • foam sclerotherapy treats lumpy and painful varicose veins
  • The Cooden Medical Group offer foam sclerotherapy for the effective treatment of varicose veins

Ultrasound guided foam sclerotherapy or ‘injection of varicose veins’ is a safe, highly effective treatment used primarily to treat tortous varicose veins that cannot be treated with laser or as a secondary treatment instead of avulsions to treat the appearance of varicose veins.

How Foam Sclerotherapy Works

The veins are injected with a solution called a sclerosant which damages the internal lining of the vein and causes blood clotting within the vein. Over a period of time your own body will destroy the vein and it will disappear. The solution used is available in different concentrations depending on the size of the vein being treated and is called Sodium Tretradecyl Sulphate or ‘STS’ for short. The procedure is performed under ultrasound guidance. Foam sclerotherapy is of particular advantage to those who have had previous varicose vein operations as it avoids going through the scar tissue of previous surgery. It is also commonly used in conjunction with EVLA.

Here at the Cooden Medical Group we use foam sclerotherapy to treat superficial varicose veins and smaller to medium varicose veins by injecting sodium tetradecyl sulphate (STD) into the vein being treated under ultrasound guidance.

The treatment involves creating foam, by rapidly mixing and agitating the solution with a small volume of air. This irritates or damages the lining of the blood vessel, causing it to spasm and then stick together. The blood in the vein will then clot, and blood will then re-route through healthier veins.

After foam sclerotherapy, treated veins tend to fade within a few weeks, although occasionally it may take up to a month to see the full benefits. In some instances, a course of treatments may be required.

Getting Treatment For Varicose Veins

We receive fantastic results here at The Cooden Medical Group using foam sclerotherapy. Although the procedure is highly effective and works for the majority of patients, everyone is unique and as such we cannot guarantee its 100% success.

Initial Consultation For Foam Sclerotherapy

All our vein treatments require an initial, investigative consultation. We will perform a range of comprehensive diagnostic tests and scans, based on a foundation of Duplex Ultrasound Scanning, in preparation of any treatment plan. Here we will review your symptoms and exclude the likelihood of a deep vein thrombosis. Further to this, we can then create a unique treatment plan for you and accurately outline the type and cost of your procedure.

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Cooden Vein Clinics

Cooden Bexhill Clinic, East Sussex

Cooden Bexhill Clinic, East Sussex

The Cooden Medical Group is a specialist vein clinic in East Sussex offering pioneering vein treatments and medical procedures.

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Canterbury Veins Clinic, Kent

Canterbury Veins Clinic, Kent

Our new medical facility located at All Health Matters in Canterbury to treat patients with varicose veins and other problem veins.

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Cooden Medical of Harley Street

Cooden Medical of Harley Street

The Cooden Medical Group is a specialist vein clinic with a branch on Harley Street offering pioneering vein treatments, aesthetics and a wide range of orthopaedic and sports injuries diagnostic and therapeutic services.

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  • What are the side effects of foam sclerotherapy?

    These include mild bruising/swelling and occasionally a small blood filled tube under the skin that will take a couple of months to fade. Skin pigmentation may develop overlying the varicose veins which can take a few months to fade.

    Complications are unusual but can include bruising or discomfort around the needle site, irritation, a small area of skin discolouration overlying the vein; in extremely rare cases, ulceration.

    Is foam sclerotherapy painful?

    Foam sclerotherapy is virtually painless just involving one or two small needle punctures into the affected veins. After treatment you will have to wear compression stockings for a week or two. More than one sclerotherapy session maybe needed to achieve the desired result.

    What happens after the treatment?

    As there is minimal downtime, after the treatment you will be able to drive yourself home and resume regular activities. We recommend light walking but no running or strenuous activity for the following couple of days after treatment. Compression stockings or bandages will need to be worn for around two weeks after the procedure.

    A bandage and stocking are placed on the leg, which need to remain in place for around 1 week. Some patients require a second injection for residual veins after a few weeks. Most patients are able to return to their normal routine immediately following foam sclerotherapy treatment for varicose veins.

    How effective is foam sclerotherapy?

    In general, smaller veins respond in three to six weeks, and larger veins respond in three to four months. If the veins respond to the treatment, they are unlikely to reappear especially if combined with EVLA to treat the underlying refluxing vein/

    Are my veins right for foam sclerotherapy?

    If you have very extensive and very large varicose veins, we may suggest EVLA. We commonly use foam sclerotherapy to deal with superficial varicose veins after performing EVLA for the underlying cause. Also, if you have any underlying blood clotting tendency, it may not be advisable to have sclerotherapy. We will however advise you of all your options in your consultation.

    Will I need further treatment?

    To see complete recovery, you may require a few sessions of foam sclerotherapy. Some of the untreated veins may have shrunk at that stage.

  • Price per session as secondary treatment:
    £300 Unilateral / £500 Bilateral
    Price per session as primary treatment:
    £600 Unilateral / £800 Bilateral

    Consultation & Venous Doppler Ultrasound - £200
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Contact The Cooden Medical Group 01424 846190


  • "True excellence, would not hesitate to recommend. Thank you team, you are all wonderful."
  • "Always felt welcomed, always felt well informed, always felt taken care of. Thank you Dr Faris & Shannen!"
  • “I received a very high standard of care from initial consultation to after treatment. All staff were unfailingly polite and courteous and I would recommend the clinic unreservedly.”
  • “I was very satisfied with the treatment and Dr. Mo Faris carried out the procedure in a very efficient and professional way. I wouldn't hesitate to have any further problem carried out at your clinic.”
  • “Excellent reception welcome and procedure on my legs was very quick and painless. Thank you all. I would definitely recommend The Cooden Medical Group.”
  • "The clinic made my whole procedure as comfortable and relaxing as possible. Would certainly recommend Dr Faris and his team to my friends and family."
  • "Very professional, friendly staff with a good range of treatments on offer to make me look and feel better."