If the infection does not go away soon….
I’m not saying your cat needs Clindamycin (I’m unqualified to say that.)
But I will say that Clindamycin (also known as Antirobe, or Cleocin) is in the lincosamide class of antibiotics. It is used most often for oral infections, dental disease, abscesses, deep wounds, and bone infections. I copied that last sentence from peteducation.com, by the way.
Here’s lots of good information about Clindamycin.
And here’s the first place I found that sells it, but Buyer Beware… I’ve never used this pharmacy before (but I’ve used similar others to great success): http://www.canamericaglobal.com/products/Antirobe_Aquadrops/25/
If you ever take antibiotics for yourself or give them to a dependent…. make sure that the therapy is continued every single day for 10 days (more or less, but that’s about right for this particular drug), even if symptoms disappear. This is so dangerous to not remember. Ending antibiotic therapy early is a huge mistake.
Taking the cat to the vet, if possible, is obvious. But I realize there’s something called reality, too.