Sclerotherapy – FAQ’s

Q. What is Sclerotherapy?

Sclerotherapy is the injection of a sclerosing liquid, through an extremely fine needle, causing microscopic damage to the cells lining the vein. The internal walls of the vein become “sticky” and close up. This prevents further flow of blood through the vessels.

The body’s own immune system then clears away the blood vessels

Q. What does it feel like?

The Sclerosing agent is used in tiny amounts and causes a brief tingling sensation as the agent enters the vessels.

Q. What happens after Sclerotherapy?

For a day or two after treatment the injection sites like rather like insect bites, but these subside quickly. Small bruises will be visible at the injection sites but will fade within a week or two.
For one or two weeks the veins will probably appear more prominent than before treatment but will then usually begin to fade and continue to do so for up to eight weeks or longer. For 4 to 6 weeks later, remaining veins can be re-injected to reduce them further.

Q. What are the possible complications of Sclerotherapy?

Complications of Sclerotherapy are rare but can occur.

Following the treatment some patients develop brown discolouration of the skin, which is due to the deposition of an iron-containing pigment (haemosiderin) in the skin.  This pigment may take time to fade away or, in very rare cases, can be permanent, although we have never experienced this.

Other much rare complications include a reaction to the agent, causing inflammation at the injection sites. If these are not treated correctly, small superficial ulcers can form. In our experience, this is extremely rare.
For these reasons, pregnant or breast feeding women will be asked to postpone treatment and patients taking certain medication (such as anticoagulants) will be advised against sclerotherapy. All clients are given treatment advice to minimise risk of complications.

After Care Instructions:

Before treatment:
Do not use bath oils, lotions or creams on your legs on the day of the treatment
Dress in loose clothing, jogging trousers or skirt and comfortable shoes to accommodate the compression hosiery
If you have already been supplied with a compression stocking bring it with you on the day of the treatment.

After Treatment:
Take a 10minute walk immediately after treatment
Wear your compression hosiery as instructed. Expect your veins to look worse before they get better
Avoid extremes of temperatures for 14 days i.e. very hot baths, saunas, sun beds
Avoid sun exposure for 4 weeks – pigmentation may take longer to fade
Avoid high impact exercise for 2 weeks
Avoid waxing of the legs for 4 weeks
Elevate your legs as much as possible for the first 2 weeks
If your planning air travel discuss with your practitioner who will advise
Consider wearing compression hosiery long term to minimise thread vein recurrence
Any further concerns please contact: Pure Aesthetics on 0115 950 2020


  1. Vicki Brown

    I have thread veins on numerous areas on both of my legs, i would be most grateful if you would give me an estimate of how much this could cost. Thank you.

    • danielle

      Hi Vicki. The treatment is £90 and usually lasts half an hour. The therapist can usually get quite a lot done in that time. If you would like to book a free consultation then please contact us on 01159502020.

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