At the back of my throat on one of my tonsils it is red and inflamed on the left side it also hurts to swallow and has a white/yellow spot on it?

Tonsil inflammation: For significant sore throat with swollen tonsils / lymph nodes – see Dr & get a strep throat test/ culture. If you have Strep Throat, antibiotic therapy is imperative to prevent future complications. Consider Tylenol (acetaminophen) or nonsteroidal anti-inflammatory medications. Saltwater gargles: Mix 1 tsp salt in 8 oz warm water – gargle several times a day. May be viral.