thanks for you superior knowledge, so you have been leaving them alone to crust and dry out for 3 + years and you are still not healed yet. that's an awful long time for a scab to take to heal. maybe there is another cause/ solution than it being a scab. scabs usually heal in 1-2 weeks. from what I have seen you can easily lick nibble the crusts off with some saliva or in the shower but you refuse too. oh I know, the dry crappy crusts are your friends.