There are many foods we eat daily that can increase sun sensitivity, such as mud snails, ashwagandha, chard, amaranth, rape, spinach, lettuce, fungus, and laxative tea. The most common foods that increase photosensitivity are various wild vegetables, which in severe cases can show significant swelling of exposed areas, which we call phyto-sun dermatitis. Western medicines, such as: sulfonamides, quinolone antibiotics, tetracyclines, ashwagandha, diuretics, sedatives and tranquilizers, salicylates, hypoglycemic drugs, oral contraceptives, etc., can also increase photosensitivity of the skin. Chinese herbs including edible spices have photosensitizing substances, such as thorny mustard, windbreak, saxifrage, doklam, antebellum, cumin, baixiangpi, dahurica dahurica, bone marrow, and snake bed seed. Certain daily products, such as cosmetics and shower gels containing fragrances, can cause skin inflammation under sunlight. The above mentioned are only some of the substances that increase photosensitivity, the human body’s sensitivity to sunlight varies, as does the sensitivity to drugs and food. Therefore, the above photosensitive substances cannot be generalized, and if necessary, a light spot patch test can be performed to clarify the individual photosensitive substances.