I would seriously consider the trip to your vet. Obviously conventional mehtods aren't working to get the dead skin off. I don't know of many snakes who like having thier heads touched. None of mine do, that's for sure. Did you try a Q-Tip to remove the eyecap? I have used a dampened Q-Tip before and had great success with that method. To me, it would be worth the trip to the vet with both snakes though, just to make sure.