Suggest Remedy For Redness And Swelling In Feet With Pain

hi my father is on oral chemo sunitinib (37.5mg/day) and now after 3 month consumption ( 14 days on & 14 days off) ,he is facing problem of unbearable pain in foot & beside the hand finger s nail. Can you sugggest and medicine to stop the pain. Little bit swelling & redish in foot.