Preventing cryptococcus from crawling into bed can be avoided by maintaining indoor and outdoor hygiene, closing screens and windows, and adopting various mosquito repellent measures such as pointing mosquito killer, mosquito lamps, spraying mosquito repellent floral water and other measures. Cleaning the indoor and outdoor environment, maintaining environmental hygiene to prevent the breeding of cryptoptera; closing the screens to prevent cryptoptera from entering the bed; taking various mosquito repellent measures such as pointing mosquito extinguishers, mosquito lamps, spraying mosquito repellent floral water, etc.; and switching off the lights at night to prevent cryptoptera from entering the room, etc., can generally prevent cryptoptera from crawling on the bed. If cryptococcus stays on the skin, it should be blown away by mouth blowing and not killed on the skin. And rinse with soapy water, apply glycerite lotion, if redness and swelling is obvious or erosion, apply 1% alum liquid or 1:5000 potassium permanganate solution wet compress. In serious cases, it is recommended to seek timely medical treatment.