Hi. Im no Dr. This is not medical advice and I am not responsible if you choose to use this method.
With that out of the way, have you looked in to cayenne pepper to help stop the clots from forming. There is a compound in the pepper that helps with blood clots. I fill capsules with it and take them twice a day. I heard about this on Coast to Coast Am podcast. I did some of my own research and tried it. I had swelling in my left leg. I don't notice it anymore. Look into it and I hope it helps your husband.