Before Your Appointment

Before the procedure, avoid shaving or applying any lotion to your legs. (Don't shave or use lotion after the procedure until the injection site is healed either.) Wear loose, comfortable clothing to your appointment. You might even consider wearing a pair of shorts so that your legs are exposed.

Immediately After

For the procedure, you'll lie on your back with your legs slightly elevated. After cleansing the area to be treated with alcohol, a fine needle to slowly insert a solution into the appropriate vein.
The solution Fibrovein, works by irritating the lining of the vein, causing it to swell shut and block the flow of blood.
Eventually, the vein will become scar tissue and disappear.
Some people experience minor stinging or cramps when the needle is inserted into the vein. Topical anaesthetics are used to minimise any discomfort.
Once the needle is withdrawn, compression is applied and the area is massaged to keep blood out of the injected vessel and disperse the solution.
The number of injections depends on the number and size of veins being treated.

You'll be able to get up and walk around soon after the procedure. Walking and moving your legs is important to prevent the formation of blood clots.
You'll be asked to wear compression stockings or bandages — usually for about two weeks — to maintain compression on the treated veins.
Most people return to their normal activities on the same day, but it may be wise to have someone drive you home after the procedure. You are advise you to avoid strenuous exercise for two weeks after the procedure.
You'll also want to avoid sun exposure to the treated areas during that time. The inflammation caused by the injections combined with sun exposure can lead to dark spots on your skin, especially if you already have a dark skin tone.

Results

If you were treated for small varicose veins or spider veins, you can usually expect to see definitive results in three to six weeks. Larger veins may require three to four months. However, multiple treatments may be needed to achieve the results you want.
Veins that respond to treatment generally don't come back, but new veins may appear.
A follow-up visit may be scheduled a month after the procedure to determine how well the procedure worked and if you need more sessions. Generally, you need to wait about six weeks before undergoing another sclerotherapy session.

Temporary Side Effects

Some side effects that may occur at the site of the injection include:

These side effects usually go away within a few days to several weeks. Some side effects can take months or even years to disappear completely.