3rd degree burn 3/8"x2" back of hand. Scab keeps coming off/knocked off after I clean it. I'm not soaking it. Scabs are frail. How do I prevent this?

Silvadene (silver sulfadiazine) Silver sulfadiazene can be applied daily and covered with gauze. This will prevent infection and allow the epitheliazation to ocurr.
See a plastic surgeon. If you have a third degree burn, this is serious.It means your hair follicles and oil glands have been destroyed.You do not want to get an infection.