Raynaud’s is more pronounced in my feet but also in my hands on occasion. Swelling, burning, and the color variations (red,white,blue). At first, the doc said Covid Foot????? Then when blood work came back she said Raynaud’s. Not the Phenomenon, but the disease. The phenomenon is related to an autoimmune. The disease is on its own. Mine seems to get worse when my pain level from neuropathy is over the roof. Doc just said to wear gloves and socks. Episodes last around two-three weeks. Doc seems to think the Covid vaccine had something to do with Raynaud’s peaking through. Sorry to hear about your cancer diagnosis. I to, do not take any medication for pain. It’s tough but I do not like the side effects.