Thankfully, my rash resolved after 7 days treatment with benadryl and famotidine. As the rash left severe itching started in my hands and feet. If I was a dog i would be wearing a cone around my head. The hand itch is so intense I hold onto blue ice at times to settle it down. The oncologist prescribed an antihistamine which is stronger than benadryl but it makes you extremely tired, a little dizzy, and shaky. So I am praying the itch resolves like the rash did, time will tell!