Will i get any medicine for pain when i go for the laser treatment of leg veins?

Depends...: On what type of veins are being treated and what treatment you will be receiving. During endovenous ablation of saphenous/perforator veins, doctors use tumescent local anesthesia in areas to be treated in order to keep them numb & protected from heat generated by the laser/rf device. Anesthetic is generally not necessary for sclerotherapy to treat spider veins; patients tolerate injections well.

Yes and no: As dr. Rosen said, it will depend on what you are having done. If you have surgery or an endovenous thermal procedure, you will get an anesthetic during the procedure so that you won't feel anything. Sometimes a small amount of anesthetic is also given during sclerotherapy too but not always. The amount of pain you will have afterwards should be minimal and Ibuprofen is usually all you will need.

Medical laser yes: Sometimes a topical cream is used like Emla (lidocaine and prilocaine) or Lidocaine creme before the cosmetic superficial laser for tiny red spider veins plus a cooling gel. But sometimes the laser hurts more because the laser is being used to treat too large of skin veins: ie: dark blue or purple veins that is better suited to sclerotherapy.

For closure yes.: With endovenous closure with laser or radio frequency i give 1mgm Ativan (lorazepam) and one advil 1/2 hour before the procedure. Post procedure i recommend advil, Motrin or ibuprofen. For topical laser for spider veins i usually use nothing or very rarely Ativan (lorazepam) or advil.