Hi pns999. Ask your Doc about StrataMGT ointment. Its a semipermeable wet wound coating. It may help those awful painful blisters heal. Also, there is a spray version of lidocaine. While short lived, it can give some relief. The strataMGT has to be ordered and is pricey, but each tube lasts a long time. It really helped me, when nothing else had worked. Coconut oil is not semipermeable and prevents the air exchange needed for the tissue (your blisters) to heal. Its good for the dryness though, but so is the estrogen cream. Good luck!!!