Dry and itchy throat and cough need to identify the cause and diagnose the cause of the disease and treat it. Amoxicillin may be effective if the inflammation of the respiratory tract is caused by a sensitive bacterial infection; amoxicillin is ineffective for other causes of dry, scratchy throat and cough, such as gastroesophageal reflux. Amoxicillin is a semi-synthetic penicillin antibiotic, when the dry, itchy throat, cough symptoms are due to sensitive pathogenic bacteria infection caused by inflammatory diseases, such as acute pharyngitis, acute bronchitis, etc., taking amoxicillin can be sterilized, anti-inflammatory, dry, itchy throat, cough and other symptoms in the use of the drug can often be relieved. However, dry itchy throat, cough may be caused by other diseases, there is no bacterial infection, such as allergies, reflux pharyngitis, etc., taking amoxicillin to treat dry itchy throat, cough is often not the right cause. Taking amoxicillin may cause rashes, hives, nausea, vomiting and other uncomfortable symptoms, penicillin skin test positive reaction, infectious mononucleosis and other prohibited. Therefore, the use of amoxicillin for dry, itchy throat and cough should be directed by a doctor.