If you have a mosquito bite like bag on your body, and it is particularly itchy, you can deal with it in the following ways: 1. You can apply local toothpaste containing mint to stop the itching, you can also apply baking soda to stop the itching, and some people can also apply iodophor to stop the itching. 2. It may be caused by allergies, and you need to go to the dermatology department of the hospital to check. If it is caused by an allergy, you can usually apply topical glyburide lotion and take oral desensitizing medications such as paracetamol or cetirizine. The company is also required to get rid of allergens, for example, try not to touch paints, special cosmetics, shampoos, and use non-aromatic lotions when washing clothes or sheets, etc. 3. It may also be caused by swollen lymph nodes, which require further blood tests and ultrasound for clarification. In short, if there is a persistent lump on the body and itching, go to the hospital in time to clarify the cause.