Patient's question:
NoDoctor's answer:
Hello, upper respiratory tract infections caused by colds are usually caused by streptococcal infection. Penicillin or cephalosporins are the first-line treatments. If you are allergic to penicillin or cephalosporins, azithromycin can be used. Levofloxacin is contraindicated for those under 16 years old, and it should not be used for children who are 1.5 years old to avoid affecting the baby's development.