text: i caught strep throat while on antibiotics-is there stronger to cure? i caught this junk from my six yr.old, and i'm on antibiotics for an infected tooth. (amoxicillin) my son was put on the same for strep. should i see if it will run its course, or go to dr.? u might be immune to that certain antibiotic, and might want to see if your dr. will up the dose of give you something stronger.