It was probably good that the top blistered area was snipped off. The edges of the wound will heal faster than that of the inside on many occassions. Some things don't get stitched together the way they used to because the healing needs to come from the inside to the outside to fully heal and reattatch.
Keep it clean and dry--from water showering, or doing dishes, and keep it covered most of the time when it could get caught in clothes, or whatever and pulled it back apart. You will know when the healing is such that that happening won't be an issue. Then you can leave bandages off like ever night, then more and more open. It will be sensitive for quite some time, and may always be more sensitive than it was before the wound. It depends on how close to the nerve the cut was, and other things.
Other ideas, think about you have used in the past to help your body heal. Use that as your guide to get this healed. We all are different, so one ointment may help you that won't help the next and visa versa. Try something for 2 days, then if that doesn't work, try the next thing on your list. If in 4 days you have little luck gettng it healed, have it looked at. You could have an infection in it that is keeping it from healing. Or if the pain gets too severe, or you have draingage that you didn't have before, don't hesitate to go to the DR.
Good Luck. I praying you will heal quilckly and completely.