I had been taking antivirals for 10 days (Valtrex) when my inner cheek started to hurt one afternoon, that same night I woke up with quite a lot of pain both in my cheek and in my left tonsil and ear. I tried to endure one day to see if it happened with painkillers, but the thing was even more: A lot of pain and I am hardly able to chew to eat (Right now I have a liquid meal). Today I went to see my doctor and she examined me, she told me that I have the candida fungus and that the cause is almost certainly taking the antivirals for so long because the defenses drop. And that was taking vitamins B, C and E. Iron and monolaurin. This does not mean that it will happen to everyone that you take antivirals, it is just a warning that if you notice something similar to mine, stop the antiviral and go to the doctor quickly. Unfortunately I have finished with antivirals after 12 days, but the pain I have right now is hellish; to the point where I can effortlessly ignore tinnitus.