@maineguy- Welcome to Mayo Clinic Connect. It doesn't take a lot of words for e to see that you are pretty fed up with your cough. I hope that you have the time to read these posts.
I had to look this up so that I could answer this question. "Castor oil packs are made by soaking a piece of flannel in castor oil and placing it on the skin. The flannel is covered with a sheet of plastic, and then a hot water bottle is placed over the plastic to heat the pack. A castor oils packs typically placed on the following body regions: The right side of the abdomen" Verywell heath.Nov 20, 2019. People use this against a number of ailments, including skin conditions, blood circulation problems, and digestive upsets. It is a holistic health approach.
What doctors have you been to? Have you you've tried any treatments? What tests have you had done?