... for Epilepsy and have developed a strange symptom. I have had an unexplained cough... just an annoying tickle in the base of my throat. It started when I had the flu in December, but hasn't gone away! No congestion, no other problems... when I looked on side effects of Topamax, I see less usual ones listed is a cough! Anyone else have this problem? I already have some of the rarer side effects... like I do not sweat, hair loss... why not this strange one?! I just wondered if ANYONE out there had this! I'm just NOT convinced it's my allergies!