Sinusitis
"I have had a severe reaction to Bactrim multiple times and only just recently put it together. According to my doctor, Bactrim has a super rare side effect in which it can cause drug-induced meningitis. I was prescribed Bactrim last month for a sinus infection and after a single dose was extremely ill and ended up hospitalized with viral meningitis. My intracranial pressure that was read with the spinal tap was 62 and normal readings are under 20.  This was the third time I have taken Bactrim and the reactions increased in severity with each incident."