Jaguar Health (NASDAQ:JAGX) stock is rocketing higher on Tuesday after the pharmaceutical company announced a new license for a chemo mouth treatment.Jaguar Health is looking to treat chemo mouth, a side effect of chemotherapy, with Gelclair. This treatment already has approval from the Food and Drug Administration (FDA).Jaguar Health is licensing Gelclair from U.K.-based Venture Life Group. The product is a gel that makes it easier for patients undergoing chemotherapy to eat, drink, swallow, speak and slee ...