I did some reading and see that Ivermectin is "supposed" to treat them.
ivermectin can be used to treat and help control New World screwworm infestations (myiasis) in livestock, often providing residual protection for 16–20 days. Injectable ivermectin is authorized for treating active...
Really, really glad that you ARE young, strong and agile! That could have ended so much worse. Sorry for the injuries and hope that you heal quickly. I know you're gonna be sore as he// but I bet you'll be up and at it much more quickly than your docs will like.
I am devastated for you and for Sheba. My heart hurts for you both and I'm crying with you. I've followed her story forever and have always been impressed with how you brought out the best in a stubborn puppy. She always reminded me of my Cowboy. I wish she had been able to stay with you for...