The numbness in fingers and toes is the symptom of Peripheral Neuropathy caused by chemo. You will need to let your health provider know so they can assess and may need to adjust your next treatment. Simple comfort measures include massage, flexible splints and lotions/creams. Wear thick socks and soft soled shoes, always keep warm. Some may feel deep breathing & relaxation helpful. Your health provider may give you pain releiver or B-complex.