Strep Throat or just Allergies. ?

i was treated for strep throat with clindamycin (300mg 2x4 a day for a week) from may 30 - june 7nd after finishing my antibiotics on the 8th of june I was fine and sickness free for about another seven days. two days ago my throat started to hurt alot and i got so much post-nasal drip to the point where in the mornings i was almost coughing some of it out into the toilet. i noticed in the beginning of my reccurrent episode of sore throat it occured randomly after gargling with salt water. i went the the hospital the next day and was told it wasn't strep but allergies since i had a slight cough and alot of post nasal drip, they ER doctor gave me claritin and some nasal spray. since then i still have a sore throat but in a localized are of the back of my mouth and my nostrils appear quite red and irritated even though i don't have the sniffles and i'm not blowing my nose. I just lost my health insurance a few days ago and I cannot see my doctor untill i get this sorted out on monday perhaps. If its the dreaded return of strep throat what shall i do. ? could it just be allergies. ? i don't have a fever like i did when i first got strep throat and there are no other symptoms.