On occasion, if a bite of food, particularly meat, is too large, it will be blocked and my esophagus will fill with my last two bites of food. Once these are coughed up, my esophagus seems to relax and I can continue eating. It may take 15 minutes for my esophagus to relax. Sometimes I keep spitting up mucous. Is the only way to avoid this chewing my food 30 times before swallowing. I cannot take large pills. I am 78 years old.