Hi doctor, good evening. My mother (92yrs) has this artritis-like 2 lumps (5mm high each) on first joint of her right middle finger, pain on touch. What are the precautions, what to take, or rub, to relief the pain, and therapy? Is voltaren gel advisable or can you please suggest anything else I can do or give her? Do voltaren gel and oral type can cause the same side effects and adverse reactions? Thank you Christina