My husband did some research on medical research sites and they said to try NAC (N-Acetyl-Cysteine) which is an amino acid. I tried it for 2 months, I saw a slight decrease in stiffness of my joints but was slightly sick to my stomach after taking the dosage. Not sure if it works but some swear by it. There is also DMSO cream, rubbed on my hands but for me this made the sensitivity worse. But there is research and each person is different.