Babies with flea bites are mostly treated with medication to relieve the symptoms. Fleas are blood-sucking insects, usually stay in the human body for several minutes to several hours, in the blood-sucking place to form a red papule with bleeding spots, the damage is often distributed in groups. People who are allergic to flea saliva may have blisters, erythema or purpura. For those with mild symptoms, local topical glucocorticoid cream, such as Dinaid cream, etc.; internal antihistamine drugs, such as loratadine, cetirizine, etc.. Plain parents should pay attention to protection, avoid the baby and pets, poultry contact, available containing dichlorodiphenyltrichloroethane (DDT), containing pyrethroid insecticides to disinfect the environment. After the baby is bitten by fleas, if the symptoms are more serious, it is recommended to consult a doctor in time to be evaluated and treated by a specialist.