When reapplying sunscreen, remember that protection will be restored to the product's SPF value. By applying more, you do NOT increase the SPF number. Because some ingredients can cause staining, be sure the sunscreen is allowed to dry on the skin before touching clothing, vinyl or fiberglass. Adults and children who are prone to allergies and have allergies to certain drugs including benzocaine, thiazides, or the sulfonamides, are more likely to be allergic to sunscreens containing PABA and the PABA-esters. Those with dry skin should avoid products containing ethyl or isopropyl alcohols, which have a tendency to further dry skin.
Sunburns are painful and can be dangerous.
A first-degree sunburn causes redness and will heal in a few days with peeling of the skin. This type of burn is best treated with cool compresses or a cool bath. That means they provide pain relief in one area of the body. Examples of local anesthetics include benzocaine, dibucaine, lidocaine and tetracaine. Check with your pharmacist because some of these ingredients are not appropriate for children, especially younger children and infants.