What should I do if a mosquito bite becomes infected and produces pus?

If a mosquito bite becomes purulent, the following measures should be taken: 1. Keep the wound clean: Wash the wound with warm water and soap to remove dirt and bacteria around the wound. Keep the wound dry and clean to avoid reinfection. 2. Disinfect the wound: Use a sterile cotton swab to apply iodine tincture or povidone-iodine to thoroughly disinfect the wound, killing bacteria and preventing further spread of infection. 3. Topical medication: After disinfection, if symptoms are mild with only slight pus discharge and redness or swelling, antibiotic ointments such as erythromycin ointment or mupirocin ointment may be applied locally under a doctor's guidance to promote wound healing and prevent infection. 4. Oral medication: If symptoms are more severe, with significant redness, swelling, and substantial pus discharge, oral antibiotics such as amoxicillin capsules or cefaclor tablets may be required to control inflammation, in conjunction with topical treatment. 5. Seek medical attention: If the wound is severely infected with symptoms such as fever, tissue discoloration (blackening), or foul odor, it is recommended to seek prompt medical care at a hospital for professional treatment.