Probably so, if you have access to some coconut oil or Vaseline to help keep it softened so it can heal would help too, Not so sure about covering it , other than if you can't put her in an ware to keep the flies off, not had the need for such large would care. Is there a local vet you could at...
keep her warm, and if you have some electrolytes give her some to help with the stress. besides cleaning, you can use a human first aid antibiotic as long as it doesn't have pain reliever in it, and keep an eye on it, it should stay clean and moist to heal