Q. Will laser surgery get rid of telangiectasias (spider veins or tiny visible blood vessels)?

A. Laser surgery using a pulse dye or other laser can be an effective way to treat telangiectasias on the legs. For many sufferers, laser treatment can provide long-term relief from these unwanted spider veins.

However, the role of laser surgery is largely unknown in rosacea. It does appear to have a useful role in treating granulomatous rosacea of the nose. But the role of lasers in treating spider veins of the face in patients with rosacea is unclear. If you are considering laser therapy, discuss your concerns with the dermatologist who will be performing the treatment.

Q. The directions on my topical medication say to use it twice a day. But if I perspire a lot because of hot weather or exercise, shouldn't I reapply the medication?

A. No. Topical medications should be applied twice a day, in the morning and at night. Allow the medication to dry completely for five to 10 minutes. During this time the medication will quickly absorb into the skin of the face. Then, resume your regular skin-care routine and normal activities. Perspiring from hot weather or exercise later that day will not diminish the topical medication's effectiveness.