One of the side effects of using bactrim
in conjunctival and scleral injection which occurs within a month of starting the therapy. Once the drug is stopped, then by 3 to 4 wks time your eyes will return to its normalcy .
Check with your ophthalmologist if therednessis persisting and associated with any other symptoms of pain,blurring go vision etc....
Always talk to your physician about any side effects of the drugs he has prescribed,to avoid panicking situations in future.
Hope you are better now.