Each individual spot is treated with a laser beam that breaks up the pigmentation. A light crusting/scabbing will form over the next 2-3 days. This typically sloughs off over the next 4-7 days leaving you with fresh new skin. Light spots are typically removed in a single treatment. Darker spots will lighten up but may require another treatment to eliminate. Each brown spot responds differently.
Do you have brown discoloration over your whole Face?