It is best to go to the dermatology department of the hospital to have a professional doctor check the baby’s head to see what kind of condition it belongs to, more common lymphadenitis or mosquito bites lead to. If it is caused by mosquito bites, you can treat it with topical ointments, such as tannin ointment or ellagic acid ointment. If it is due to lymphadenitis, a local ultrasound examination is needed, and if necessary, oral medication such as amoxicillin clavulanic acid potassium is used to treat the condition. Lymphadenitis is generally considered to be related to viral infection. Has the baby recently had a cold, if so, there is a possibility of swollen lymph nodes. So it is best to go to the hospital for examination and clear diagnosis.