Let me introduce you to an effective and inexpensive remedy that has been tested countless times: First of all, I wish you a speedy recovery! Go to a Chinese medicine shop to buy 100g safflower (7 yuan/50g); Artemisia argyi 500g(7 yuan /500g). Divide it into 20 portions on average, 1 portion, wrap it in gauze and cook it in water every day-the water consumption is just up to the ankle, soaking feet. This will not only remove necrotic old skin, calluses, cracks, onychomycosis, athlete's foot and corns that have not healed for many years, but also make your feet smooth and delicate. Because your foot is the second heart of your body, it can also play the role of dredging meridians, promoting blood circulation and removing blood stasis. This should solve your problem of getting cold feet.