Sorry the liquid bandage didn't work well. At least it gave you threat material.
I think the key might be to avoid having a site she is tempted to pick or scratch in the first place. I'm hoping next year that if I get the Therapik I mentioned, it helps stop the cycle from starting again with my daughter. Stop those bug bites from itching in the first place and there might not be scratching.
We started the liquid bandage thing in early August, and the wounds healed for the most part by the first day of school in early September, and now, a month later, she still has multiple scars where she had dug deep holes into her skin from the picking. They look pretty bad. I hope they fade with age. She's only 13 and hopefully her skin can still regenerate a bit. She doesn't care much about her looks yet, but I know that will probably change pretty soon.