Recently, the temperature has been rising, engaged in outdoor work of the front-line workers, like traffic police and sanitation workers are prone to solar dermatitis. 1.What is solar dermatitis? Solar dermatitis, refers to the acute inflammatory reaction that occurs in the local skin after sunlight exposure, often occurring in late spring and early summer before the skin is tanned, and sunburn need to be identified, the former occurs in the photosensitive people, belonging to the photomorphism, the latter can occur in the normal population, belonging to the phototoxicity of the disease. 1, who is prone to solar dermatitis? The occurrence of solar dermatitis and personal constitution, skin color shade related. Weak, light-skinned people are prone to occur and the symptoms will be more serious; but also with the length of exposure time, the scope of the size of the relevant, such as plateau area people and engaged in outdoor labor is more likely to be onset of the crowd. In addition, and taking drugs, food related, drugs such as: tetracycline, ashwagandha, chlorpromazine, tetracycline ointment, coal tar preparations, psoralen, dahuricin, dihydroclavulanic acid, furosemide, bergamot oil, lemon oil, sandalwood oil, aspirin, etc.; or eat some kind of porphyrin-containing photosensitive vegetables, wild vegetables, such as: amaranth, ashwagandha, purple cloudy vetch, acacia, figs, and so on and then sun exposure, will also be Onset, this is the plant a solar dermatitis. 2, what is the performance of solar dermatitis? How to treat? The typical symptoms of the disease is irradiated exposed parts of the skin erythema, edema, severe blisters, blisters and vesicles, conscious itching and burning pain. If the sun exposure area is extensive, a small number of patients can also appear fever, nausea, malaise and other systemic symptoms. Modern medicine takes anti-inflammation and anti-allergy as the principle of treatment. In mild cases, generally applying external glycerite lotion or using compound cypress liquid wet compress, 3-4 times a day, 10-20 minutes each time; in the acute stage, external corticosteroids can be used to alleviate the local symptoms; systemic can be orally antihistamine drugs such as cetirizine tablets, loratadine tablets, etc., in particular, pay attention to can not be used to paracetamol, which has photosensitization; serious patients can be orally prednisone, hydroxychloroquine and other types of drugs; traditional Chinese medicine believes that Erythema caused by blood heat, should be treated to clear heat and cool the blood, edema or blisters caused by dampness, when the treatment to clear heat and dampness, itching is caused by wind, so it should be dispelled. 3, misunderstanding: people buy dermatologic topical drugs randomly applied to the harm. Dermatology topical medicine has one of the simplest principles: dry to dry, wet to wet, not dry and not wet with a paste, that is, there is more exudation, the choice of wet compresses; less exudation, the use of lotions, pastes; dry, scabs, scales, the use of creams, creams. Life misuse of dermatological topical drugs concentrated in two aspects, one is the selection of improper dosage form; the second is the abuse of glucocorticoid ointment, such as: dermatitis ping. Long-term abuse, irrational use of drugs, both can make the general dermatitis eczema into chronic, prolonged and difficult to cure, especially glucocorticoid ointment, easy to recur after stopping the drug, long-term application can make the local skin thinning, the skin’s protective function becomes weak; third is against the principle of external treatment of traditional Chinese medicine diagnosis and treatment. 4.How to prevent it in daily life? What kind of food is better to eat? (for traffic police and sanitation workers these outdoor workers) The key issue in the prevention and treatment of solar dermatitis is sunscreen, sun exposure sensitive people, when you go out, be sure to take protective measures, such as support umbrellas, long-sleeved clothes, exposed skin can be coated with shading agent, the market sale of sunscreen can be selected, generally labeled on the box sunscreen factor SPF value (SPF = sunscreen agent to protect the skin from the smallest amount of erythema / sunscreen agent to protect the skin from the small amount of erythema). (SPF = sunscreen agent to protect the skin of the minimum amount of erythema / not by the sunscreen agent to protect the skin of the small amount of erythema), indicating that the sunscreen agent to protect against the sun of the time limit of the long and the short, on behalf of the sunscreen ability. If it is a long time outdoor activities, should choose SPF30 or so, if not long time in the outdoor sun, choose SPF15 or SPF20 sunscreen can be. Regular participation in outdoor activities allows the skin to gradually produce the appropriate amount of melanin in order to continuously enhance the skin’s tolerance to light. People with poor tolerance to sunlight can take gradual exposure to sunbathing methods. The beginning of time is not too long, choose the morning and evening when the sun is not too strong. Then gradually extend the time, long-term persistence will slowly receive the effect. Prolonged engagement in outdoor work of the crowd, usually can take appropriate amount of vitamin C, vitamin B complex; or at any time to serve some heat cool blood in addition to dampness class of proprietary Chinese medicines, such as niu huangqingxin pills, dan, ten drops of water, patchouli Zhengqi water, and so on. Diet easy to light, can be given chrysanthemum, wolfberry, lotus seed, green tea, artemisia, scutellaria and other heat and detoxification, anti light sensitivity Chinese medicine tea.