Cut a raw potato in half and spread the sap over the sunburned area. It will immediately cool and relieve the pain. Use as often as needed. Aloe Vera tisane. When the tea is cool, sponge the area of sunburn with the tea. Can also be used to relieve nettle stings and insect bites. Camomile. Use the sap of fresh Camomile diluted in warm water on the sunburned area, or use dried Camomile in a tisane and sponge onto area affected. Also relieves nettle stings and insect bites, soothes chapped skin, and is some help on certain types of acne.