One of Sjogren’‘s things is that your body does not produce enough liquid. I have dry skin dry hair, dry eyes (I can’t even produce tears when I need to cry ), dry everything. I use Tea Tree shampoo and conditioners and it is helped my hair tremendously. I also use tea tree body wash in the shower. When I have itchy skin eye lotion it heavily with a good moisturizing lotion. Talk to your rheumatologist about it.