what could be causing my fingers to be red and swollen for 7 days straight? the tips of my fingers are numb and tingly. Ive tried wearing gloves to keep hands warm all day, ive tried drinking apple cider vinegar to flush my system, ive been exercising to keep circulation flowing. Im 35 years old, female, 120 pounds, i had breast cancer three and half years ago and had lymph nodes removed from left arm,but ive never had this problem before. i can barely wrap my hands around a glass to drink.