Hi welcome to the health care magic You are having acute pharyngitis and secondary Eustachian tube inflammation and earache from that... You have completed antibiotic course Take benadryl like decongestant drug to relieve inflammation Avoid excess spicy foods Drink more water.. Hot warm water will be beneficial Take vitamin C lozenges that are having viricidal effect Steam inhalation with added one drop eucalyptus oil in hot water will be beneficial Avoid smoking Take care Consult physician for examination esp Auscultation Hope this will help.. Usually viral pharyngitis take week to two week to be get relief