Welcome to Healthcare Magic It is possible she has viral fever which caused the pharyngitis as well. Is she a smoker. Any sputum production. She needs to do steam inhalation and take cough suppressants if it is a dry cough. Which antibiotic did she take. It is best if she consults her Doctor to rule out bacterial infection for which then she can take antibiotic over meal and not on empty stomach. Let her eat soft food, no cold food or liquids, just warm food and liquids. For the fever and headache she can take Paracetamol under medical supervision. If she does not get better she needs medical help.