This device allows me to safely microwave the tiny blood vessels just under the surface of the skin called thread or spider veins. I can also tackle other types of skin blemishes and unsightly skin tags. Called thermo-coagulation, the clever bit is that the energy is delivered in such a way that the skin above the vessel remains intact. The (single use) sterile needle is covered with an insulating sheath which protects the skin, enabling a targeted action without any side effect. This unique method is effective and relatively painless – even on men! I have obtained especially good results on removing melia, but now prefer to use my laser for most other treatments.