What are the possible causes of unilateral (one side only) throat pain? I have had pain (sharp, like a knife or a tearing sensation) in the right side of my throat at about the level of the larynx for well over a month. It is mild until I yawn, then it is very sharp. It radiates into the right ear. I've been searching on the internet, but can't find anything specific besides "unilateral throat pain should be investigated by a physician". Any help as to what the possible causes and or remedies to this would be appreciated.