Idk, but can you get "Anusol"? (For Hemmoroidal issues) In comparisson, one winter I had very badly cracked hands and couldn't find relief. I theorized that if "Anbesol" (different than anusol) could be used orally it could be safe for cracked hands. It worked very well for me. HINT... Do not confuse the two, one for oral pain ie: cold sores etc. the other is for anal pain ie: 'roids. DISCLAIMER...I am NOT a physician nor a pharmacist. Use at your own risk. Just sayin'!