I have a very bad sore throat. There is white spots on my tonsils and my tonsils are enlarged. I have a hard time swallowing and I have a cough, like I am trying to clear my throat and then I start coughing, and then I cough up clear phlem. I feel like I am gagging and it makes my throat really sore. Can I take aoxilcillin and will it clear it up? What can I do about the cough? My left eye keeps matting shut. I keep wiping it out with a warm wash cloth. There are little white spots underneath my eye. Is this all considered to be sinus infection?