Although some people see results almost immediately, it can take weeks for the veins to resolve completely. With spider vein treatments, the veins often will turn red, and bruising will occur at the injection site. This initial reaction usually goes away within seven days and then the veins slowly disappear over the next two to six weeks. When larger veins are treated by injection, it is normal to see some discoloration and bruising at the injection site and along the vein redness and slight soreness are also common, but not worrisome.
Over several weeks the larger vein will scar down and appear as a black, slightly raised ridge. This will be progressively absorbed by the body over approximately 6 to 8 weeks. Occasionally longer periods of time are needed for the full effect. A level of 70% – 80% overall improvement is realistic.
Most conditions usually requires an average of 3 to 6 treatments, spaced out 2 to 4 weeks apart.