Some pain or burning at the injection site may occur following injections, and some patients experience restlessness in their legs during the first few nights. This is due to the swelling of the walls of the veins.
For a month or so, the vessels may appear more prominent. The injection sites look like insect bites, and may occasionally itch. The veins gradually begin to fade and continue to improve for up to 8 weeks. After this time, a brownish discolouration of the skin may continue and may take many months to fade away.
Complications following microsclerotherapy are very rare, but the solution can sometimes escape from the veins and cause inflammation in the skin surrounding the treated area. There is also a small risk of the development of tiny ulcers, which may leave a small pink or white scar on healing.
Occasionally you may also find new veins developing in the treated areas, or even old veins flaring up again.