I think that if you keep picking it, it will never heal! Things scab so they can healing. My esthetician suggested zinc for me. My skin does not heal well at all. I take it orally (tablets) daily, as well I dab a bit of zinc oxide on the spot that needs healing (don't overuse it though). This sounds strange, but diaper rash cream works (be sure to get zinc oxide 40%). You can get it from a drug store. But do not pick at it anymore, or it will scar!
Hope it works.