Hi @aliali and welcome to Connect. You may have noticed I moved you post to the Diabetes & Endocrine System group so that you can connect with other who experience gangrene from diabetes, and may be able to receive support from them as you help your father. Click VIEW & REPLY in your email notification to find your post.
That must be heartbreaking to watch you father be in so much pain. I'd like to introduce you to fellow Connect members @lioness@franknick and @sickvick as they have some experience with gangrene and may be able to offer you support or advice.
Back to you father @aliali how is he doing otherwise? How is he managing his diabetes?
@aliali Hi I know it's heartbreaking to see your father with gangrene of his toes. I'm sorry to hear about this .My husband was a diabetic and ended up with a black spot on his heel I can tell you of what his Dr did that helped The Dr pit wet to dry dressings in that area Don't Debread Dr put a wet saline dressing on sterile gauze then wrapped it with sterile gauze several times a day I hope this helps My husband was in the nursing home at the time