The skin in SS is often very itchy, appears "thickened" and may appear scaly. Palms and soles may be very red and thickened, with cracks in the skin (called fissures).
[oncolink.org]
The side-effect profile for TSEBT includes pruritus, dry skin, fissuring, telangiectasias, fatigue, temperature dysregulation, sun sensitivity, radiation dermatitis, skin
[journals.lww.com]
There may be scaling and fissuring of the palms and soles, alopecia, ectro-pion, loss of nails, and ankle edema.
[cancernetwork.com]