Amoxicillin is one of the most commonly used penicillin broad-spectrum β-lactam antibiotics. Amoxicillin has strong bactericidal effect and is one of the more widely used oral penicillins. However, nasal itch is usually caused by allergies or viral infection factors, without a clear bacterial infection should not use amoxicillin without permission, abuse of antibiotics may cause bacterial resistance, destroy the normal flora in the human body.