Short Wave Diathermy (or electro-coagulation as it is sometimes called) is a very effective method for treating thread veins and spider veins on the face. A very fine needle is used to prick the skin over the thread veins and spider veins and then an electrical current is passed through the vein which is heated and sealed. Over the course of a few weeks, the vein withers and disperses and becomes much less noticeable. A mild anaesthetic cream is used to numb the area prior to treatment.
After treatment the skin may be pink or puffy in more sensitive areas but this will settle in a few hours. A healing process then starts and the final results will be apparent 4 to 6 weeks after treatment. The success rate for short wave diathermy to facial spider veins and thread veins is 95%.