tonsillitis, lung infection due to mold,
stomach infection, reflux, weak LES, hiatal hernia, allergy, anxiety, stress, malnutrition, ibuprofen ulcer, too much fasting...
Tried antacids (pepto, gaviscon..) but stopped because they increase the burning sensation. Instead I find relief with throat lozenges, cloves, ginger, or by rubbing vics on my nose and throat.