I have the same problem with my fingertips. At first they hurt so much I could not touch anything. I like neosporin with pain killer. I apply a dab to the painful sores and either wrap a large bandaid around them or wear loose cotton gloves. My rheumatologist also presccribed sidenafil 20mg 3 times a day and while I have to be careful I no longer have the intense pain.
Also, I try to keep my fingers moving with a squeezy ball.