For patients with photodermatosis, doctors often warn to consume less photosensitive foods. Photosensitive foods are those that tend to cause solar dermatitis. Generally speaking, photosensitive foods are digested and absorbed, and the photosensitive substances contained in them will then enter the skin. If exposed to bright light at this time, they will react with sunlight, and redness and rash will appear on the bare skin, accompanied by obvious itching, burning or stinging sensations. Photosensitive foods: mud snail, ashwagandha, purple clover, snow lettuce, fennel, amaranth, capers, celery, radish leaves, spinach, buckwheat, parsley, safflower, rape, mustard, figs, citrus, lemon, mango, pineapple, etc.