I am not recommending this, only sharing with you how my Grandmother handled it. The cure can be as bad as the ailment!
mix 1/4 cup of bleach with 3/4 cup of water and apply several times a day to the blisters or lesions.
other home remedies call for calamine lotion, I find this ineffective
bathing in ground oatmeal or epsom salts
some women recommend rubbing the lesions or blisters with the inside of a bannana peel, though I have not tried that one.
I am a big fan of Lysol---the type in the BROWN bottle only! Not the diluted stuff for light cleaning.......it must be full strength in the brown bottle.......dip a q-tip or cotton ball and apply it to the various skin rashes. It can burn, be prepared. But it kills many infections including staph......in fact, it killed a rash for me that 3 scripts of an antibiotic could not. The skin was actually peeling off of my face. I started researching the medications on the internet, and discoverd this antibiotic was designed to kill staph.......it was not working, it helped, but when the pills were gone, the rash returned. A light bulb went off in my head......Lysol kills staph, I was desperate and bought a bottle, poured it onto a cotton ball and applied it to my face. It BURNED, I wanted to cry, 3 applications and the rash was gone!
As it turns out, I am a carrier of staph, about three years later, the rash came back, again on my face......I reached for the Lysol and nipped it in the bud.