I have tonsillitis long time ago and every year i feel allergic problem in my thort.about 7 days i feel same allergic problem in my thort and tongue i have 1 canker sore.i take just anti histamine.but ago i treat this with prednisone.does it covid 19?

Can call Dr on video: Throat pain can be from a strep throat infection (antibiotics needed), a cold or influenza, EB virus, or from some other cause such as allergies, irritants, or acid reflux. Usually, a person sees the doctor (call first) if the sore throat is bothersome, recurrent, or doesn't go away quickly. COVID-19 infections tend to have cough, whereas strep usually lacks cough but has more throat pain.