SIDE EFFECTS, that may go away during treatment, include nausea, itching, dryness or redness of the skin. If they continue or are bothersome, check with your doctor. CHECK WITH YOUR DOCTOR AS SOON AS POSSIBLE if you experience severe swelling or redness of the skin, tenderness or blistering, or rash. If you notice any unusual effects, contact your doctor, nurse, or pharmacist. KEEP ALL DOCTOR AND LABORATORY APPOINTMENTS while you are taking this medicine. DO NOT SUNBATHE for at least 24 hours before receiving this medicine and light therapy. AFTER YOUR TREATMENT, avoid any exposure to sunlight for at least 8 hours. This includes indirect light through a window or on cloudy days. If you can not avoid exposure to sunlight, wear protective clothing, or use a sunscreen with a sun protective factor (SPF) of 15 or greater, as directed by your doctor. Protect all areas of the body, including lips, from sun exposure. Do not sunbathe or use a tanning booth without checking with your doctor and wait at least 48 hours after your treatment. TO PROTECT YOUR EYES, wear special wrap-around sunglasses that absorb UVA during daylight hours for 24 hours after taking this medicine. Regular sunglasses do not adequately protect your eyes because they allow light to enter from the side. FOR WOMEN IF YOU PLAN ON BECOMING PREGNANT, discuss with your doctor the benefits and risks of using this medicine during pregnancy. IT IS UNKNOWN IF THIS MEDICINE IS EXCRETED in breast milk. IF YOU ARE OR WILL BE BREAST-FEEDING while you are using this medicine, check with your doctor or pharmacist to discuss the risks to your baby.