Also known as shadow worm, green waist worm and hidden sting worm, the surface of the worm does not have venom and does not sting, but the worm contains a lot of strong acidic venom. If you find a cryptophid on your body, just blow it away gently, remember not to tap it, so that the venom will not flow out after the insect body is broken and touch your skin, causing dermatitis and other skin damage. If you have already been contaminated by the venom, you should actively deal with it to avoid aggravating the symptoms. How to deal with: 1, repel the cryptophid: you can apply repellent water, mosquito incense and other drugs with mosquito repellent effect, repel the cryptophid; 2, avoid light source attraction: if you have found the cryptophid, you should avoid turning on the light for a long time at night, insects have a tendency to light, easily attracted by light sources; 3, other: find the cryptophid do not step on or pat, to avoid causing venom outflow. Second, how to treat: 1, emergency treatment: if contact with the venom of the cryptoptera, local redness, itching, blisters, pain and other dermatitis symptoms, you can immediately clean the damaged skin surface with alkaline solutions, such as soda, soapy water, etc., to neutralize the acidic venom, and then promptly seek medical attention; 2, drug treatment: if the skin surface is not broken, you can use glucocorticoid ointment, furnace glycolic lotion to apply the surface of the skin lesions. If there is already a breakage, the skin surface needs to be treated with wet compresses such as epsom saline solution and boric acid solution, and then apply ointment. Through the above treatment, most of the local symptoms can be relieved. When the symptoms are more serious, oral anti-allergy drugs or glucocorticoid drugs can also be used for treatment to control the condition in time. Third, how to prevent: first, to keep the living environment clean and hygienic, to avoid creating a suitable environment for the survival of cryptophid. Secondly, you can install screen windows, screen doors, etc. to stop the cryptophid from entering the room. Finally, if you are in an outdoor environment, it is recommended to stay away from places with weeds or piles of discarded items to reduce the infestation of Cryptoptera.