Chemical peels are performed in a doctor's office. Your dermatologist will first clean your skin thoroughly and then apply one or more chemical solutions to the treatment area. Solutions used include glycolic acid, trichloroacetic acid, salicylic acid, lactic acid or carbolic acid. The application creates a controlled wound, letting new skin take its place. During the procedure, patients may experience a burning sensation lasting five to 10 minutes. Cold compresses may be applied to lessen the pain. Pain medication may be required for deeper peels.