If you can’t find the cause of itching on your body, you need to avoid the triggering factors as much as possible, and use topical or oral medications to relieve itching, supplemented by physical therapy. Mood swings, temperature changes, alcohol consumption, clothing and bedding friction, and even certain hints may be triggering factors for itching, which can cause itching episodes or aggravation. When you can’t find the cause of itching, you should avoid these triggering factors as much as possible, and avoid scratching, friction, and scalding. At the same time, under the guidance of medical professionals, external use of glycerine lotion, doxepin ointment, tacrolimus and other drugs, and/or oral isoprinosine, loratadine, doxepin and other drugs to relieve itching. Physiotherapy such as ultraviolet light irradiation and starch baths may also be administered to relieve itching. If the above situation occurs, it is recommended to go to the hospital in time to improve the relevant examination and symptomatic treatment.