Sun-spotting or sun poisoning is a condition where the skin develops very light or very dark patches leading to discolouration of the skin and also pigmentation. These spots often appear clumped together forming a patch of skin that lacks pigment. This usually happens due to sunburn resulting from prolonged exposure to direct sunlight and can be quite harmful if ignored. Here skin specialist and dermatologist Dr Tapas Majumdar Kolkata talks more on the condition and everything you need to know about it. Treating sun poisoning Use Vitamin E oil: Use oil enriched in vitamin E to treat sunburn. Make sure