ulceration deep in throat near collar bone

For about two years get recurring sore area in throat near collar bone.  Food seems to get in it and gets very sore and eventually I cough up the little chunks like I used to get in my tonsils.  Becoming more frequent and lasts for weeks and even get hoarse in the morning.  Did have strep throat this winter also.  Treated with anitbiotics but this area keeps recurring .