About Throat Infection & TonsillitisThroat infections include sore throat (pharyngitis) and tonsillitis. Most are caused by viruses and settle within a week, but some, such as strep throat, are caused by bacteria and need antibiotics.Symptoms include a painful throat, difficulty swallowing, swollen tonsils, fever, swollen neck glands and sometimes a hoarse voice.Medicines used for Throat Infection & TonsillitisParacetamol or ibuprofen, warm salt-water gargles and lozenges such as flurbiprofen relieve pain. When a doctor suspects a bacterial infection, antibiotics such as amoxicillin, cephalexin, cefadroxil, azithromycin or clarithromycin may be prescribed.When to see a doctorSee a doctor if symptoms last more than a week, if there is high fever, a rash, difficulty breathing or swallowing saliva, or if you cannot open your mouth fully.This page is for general information only. Many of these medicines need a prescription; please use them only on the advice of a doctor or pharmacist, who can choose the right medicine and dose for you.