Husband has dentures, was brushing mouth and said toothbrush bristol poked the back of his tongue which hurt an bled. and then his throat became sore. hurts to eat and drink. chew motions noticed hoarsness of speech. He consumes beer up to 9 a day, smokes. have given him 500 mg. of amoxicillin 2X daily and mouth rinse. he has been taken for 7 days now and doesnt seem to be helping. also gland on one side of neck is swollen. and mouth an jaw hurts. he is 60 yrs. old. help!