What should I do if my baby's face has been bitten by a mosquito and it's not getting better?

The baby's face has not healed after being bitten by a mosquito. Parents can take the following measures: 1. **Local cold compress**: Use an ice pack or a cold towel to gently apply cold compress to the bite area, which helps constrict capillaries and reduce swelling and itching. 2. **Clean and care**: Keep the bite area clean and dry to prevent infection. You may wash the area with mild soap and water or normal saline. 3. **Topical medications**: Under a doctor's guidance, apply topical medications such as calamine lotion, compound menthol camphor ointment, or zinc oxide ointment to relieve itching and inflammation. If signs of infection appear at the bite site, such as increased redness and pain, apply antibiotic ointments like erythromycin ointment or mupirocin ointment. 4. **Oral medications**: If the baby experiences a severe allergic reaction, such as widespread rash or rapid breathing, oral antihistamines like loratadine granules or cetirizine may be taken under a doctor's advice. 5. **Seek medical attention**: If the baby's symptoms persist or worsen, it is recommended to seek timely medical treatment to rule out conditions such as insect bite dermatitis or secondary infection, and to receive targeted treatment under a doctor's guidance.