Re: Can mononucleosis cause canker sores in mouth or throat?
canker sores..hmmmm....my first thought.....sinus drainage. drainage can cause your throat to feel raw and burn and even be red. also, it can cause canker sores to develop on your tonsils or in the back of the throat, for those that dont have tonsils. i didnt know this until my daughter had what i thought was strep throat, even though the "blisters" resembled canker sores. i took her to the dr and tested her for strep, which was negative, but they knew that before it came back neg. she had told me while waiting on the test that it was most likely canker sores, that there was so much drainage, that it was irritating her throat, causing the canker sores. she has had the canker sores several times since....and that alone can cause your throat to feel sore....and with drainage..makes it feel even more sore. i would see about getting some post nasal drip spray....as well as an antihistamine..such as benadryl, etc. i suffer with allergies as well....and get the drainage bad.....in fact, am suffering with it now.....and my throat is so raw feeling...but i have had it so many times,that i know that its allergies and drainage and not just a sore throat due to a virus or bacterial infection. hope this helps.