After being bitten by fleas, red papules and papules usually appear, and itching is more obvious, this condition is clinically considered as papular urticaria. The main treatment is symptomatic treatment, from the following aspects: 1, the bed sheets, bedding, intimate clothes should be changed and exposed to the sun, while the room should be ventilated and ventilated. 2, anti-itch, anti-allergic symptomatic treatment, commonly used drugs is anti-allergic anti-itch, such as loratadine tablets or cetirizine tablets, any one, oral 1 tablet every night, topical glucocorticoid cream, such as Eloson, Denide cream or compound flumetone ointment. 3, pay special attention to avoid scratching as much as possible. 3, pay special attention to try to avoid scratching the skin lesions, especially after scratching and then get wet, it is easy to secondary bacterial infection. As long as you do the above points, you will be able to quickly cure.