Went To The Walgreen Clinic Friday I Was Contagious And

Went to the Walgreen clinic Friday I was contagious and have sinusitis my tonsils were not sore or red nor did I have a cough I was given four prescriptions amoxicillin stayhist flonase and mucinex it hurt to walk my eyes and heador move from my shoulder down today I woke up with two red tonsils full of white infection
Will the amoxicillin help and why did it leave from my head and eyes to infect something else