Side effects of small vein sclerotherapy?
Most patients experience no adverse effects, however, there may occasionally by complications. They are usually minor and temporary and may include one or more of the following:-

• Small bruises at the injection sites, which disappear within 10 days.
• Muscle cramps during treatment, lasting only a few minutes.
• In rare instances, ulceration, which may heal with a small white scar.
• ‘Matting’ or tiny red capillaries which occur near the injection site. This occurs in a small percentage of patients and tends to fade after 6-9 months. Otherwise these vessels can be treated with further injections or laser treatment.
• Blood trapping. Some slightly larger vessels may appear dark and nobbly under the skin after 3-4 weeks. This is due to old blood trapped in the treated veins and will resolve over the next few weeks.