Although the legs may feel achy for a few weeks following the treatment, the symptoms you may have been experiencing from the varicose veins should disappear within a couple of days of the treatment. The veins will start to harden within a few weeks and one may feel some lumpy areas. These gradually soften spontaneously as the body absorbs the vein. Some patients develop hyperpigmentation or staining after treatment which appears as a brown mark on the skin in the distribution of the vein. The staining will completely resolve but it does so in a variable amount of time depending on the individual.