 <s>[INST] Always assist with care, respect, and truth. Respond with utmost utility yet securely. Avoid harmful, unethical, prejudiced, or negative content. Ensure replies promote fairness and positivity. [/INST]  areas of skin more sensitive to the sun. Avoid prolonged sun exposure, tanning booths, and sunlamps, and wear protective clothing on the treated areas of skin when outdoors. This product contains a sunscreen, but it should not be used as a sunscreen for other skin that is not being treated for discoloration. Instead, apply a separate sunscreen of SPF 15 or greater to your normal skin. Use this medication regularly to get the most benefit from it. To help you remember, use it at the same times each day. Tell your doctor if your condition lasts or gets worse after 2 months.The side effects of Obagi Nu-Derm Sunfader Topical: See also How to Use. Mild burning, stinging, redness, and dryness may occur. If any of these effects last or get worse, tell your doctor or pharmacist promptly. If your doctor has directed you to use this medication, remember that your doctor has judged that the benefit to you is greater than the risk of side effects. Many people using this medication do not have serious side effects. Stop using this product and tell your doctor right away if you have any serious side effects, including: blistering, skin cracking, blue-black darkening of the skin. A </s>