Try hyoscyamine first ( it helped my spasms of my esophagus which also made me throw up every time I drank or ate any amount of anything), then I tried phenergan suppositories also for the nausea. Worked great! This went on about 2 weeks after radiation/chemo then subsided as the radiation calmed down. No one in my GI office would do an endoscopy because after radiation the surface is like ground meat and very fragile. They said it was very easy to perforate the esophagus with the endoscope. Ended up I didn't need it. I'm a little over one month since the end of my treatments and I'm eating most of what I want just smaller amounts. Still have some coughing occasionally which is also normal. My surgery is slated for July 16.