Phytophotodermatitis is an acute phototoxic inflammatory reaction caused by the consumption of certain photosensitive plants (including vegetables) and exposure to sunlight. Plant solar dermatitis is an acute phototoxic inflammatory reaction caused by excessive consumption of or exposure to quinoa (ashwagandha) or other photosensitive plants and exposure to sunlight. Do you know the diagnostic tests for phytophotodermatitis? The diagnosis can be confirmed based on a history of excessive consumption or contact with the plant in question and intense sun exposure prior to the onset of the disease, swelling and ecchymosis, prevalence in exposed areas, more common in summer, more common in females than in males, and self-conscious and systemic symptoms. This disease should be differentiated from the following skin diseases: 1, contact dermatitis, the rash is mostly confined to the contact part, there is a clear history of contact, the rash with the sun and the seasons have nothing to do with sex. 2, niacin deficiency The loss of this disease, according to the onset of excessive food or contact with the plant and strong sun exposure history, swelling and ecchymosis, preferably in the exposed parts of the summer, more common, more women than men, self-conscious symptoms and systemic symptoms, etc. can be diagnosed. Rash occurs on the face, forearms, hands, feet, back, neck and nails and other exposed areas, symmetrical distribution, often manifested as significant non-sunken puffiness, surface tense and shiny, bilateral eyelid swelling, so that the eyelids are closed, can not be opened, lip ectropion, mouth opening is limited, the skin is diffuse slight flushing or purplish-red, the severe cases may appear pimples, blisters, blisters, and often accompanied by self-awareness of burning, distension, tingling, or itching. Clinical manifestations are often more severe in the elderly and infirm or in children. Improper treatment can cause disfigurement. So it is worth paying attention to. Solution: Mainly if there is a history of sunlight allergy, it is best to consume less photosensitive foods such as ashwagandha, purple cloudy vetch, snow pea, lettuce, fennel, amaranth, capsicum, celery, radish leaves, spinach, wheat, parsley, safflower grass, oilseed rape, mustard greens, figs, oranges, lemons, mangos, pineapples and so on. If you are unaware of your allergy and have consumed any of the above foods and have been exposed to sunlight, and if you experience any of the above clinical manifestations, you should go to the nearest dermatologist immediately to avoid untimely treatment that could lead to disfiguring damage.