Arthro-IonX helps to decrease pain, inflammation, and stimulate healing. In addition I find it helpful to follow a holistic approach by giving some nutritional supplements to accompany Arthro-IonX. The supplements I recommend are Canine Probiotics, MSM, Vitamin C, and Omega 3,6,9. Arthro-IonX will help the body to better utilize the nutrition for a synergistic response. I think it would be advisable to see your veterinarian to determine what has caused the lump.
Please let us know how you progress or if you have any other questions.