There is a clinical skin disease known as insect dermatitis, which is a series of skin reactions, such as edematous papules and erythema, accompanied by varying degrees of itching, stinging and burning pain, caused by the bites of insects such as mosquitoes, fleas, mites, wasps and arthropods, or by the stinging of venomous hairs of insects into the skin. What if you get such a bug bite, whether you are traveling or at home? Regardless of the type of insect bite dermatitis, traces of insect bites or bee stings and poisonous hairs can be found in the center of the affected area, and the stings and hairs should be removed as much as possible. If the bite is from common insects such as mosquitoes, mites, fleas, etc. and the number of bites is small, immediately apply alkaline medicine such as soap and water, ammonia or baking soda to the wound, or apply snake medicine. If you don’t have any of these things, you can also apply some toothpaste to save the day. If necessary, you can apply topical insecticide cream to stop itching. If the skin has been scratched, you can apply topical Paregoric Pine cream to fight infection. It is best not to use topical flower lotion, cool oil, safflower oil, aloe vera and other things at will, especially for people with more sensitive skin or children with delicate skin, to avoid secondary contact dermatitis. If the bite is extensive, the number of serious damage, or by poisonous insects such as wild bees, scorpions, centipedes (this toxic insect is more common in Wuhan city), or bite in special areas such as the eyelids, or bites at the redness and swelling persist and become heavy, and even headache, nausea, dizziness, fatigue and other systemic symptoms, in addition to eating some anti-allergy drugs, oral or topical snake tablets, it is best to go to the hospital for treatment. Also remind the public: First, pay attention to personal and environmental hygiene, eliminate bedbugs, fleas, lice and other insects at home. Bed pillows, cushion wadding and other supplies should always be washed and dried to reduce the mites hidden in them and reduce the possibility of insect bites. Secondly, most of the bites by poisonous insects occur in the middle of nowhere, so try to go to these places as little as possible. Even if you go, it is best to wear long-sleeved pants and other clothes and shoes that are not easily injured by insects. Third, go out and play before leaving the door can smear some anti-mosquito bite agents. Need to be reminded that: spiders, centipede bites, do not panic, or emotional excitement will trigger the rapid spread of toxicity in the blood.