question: Hi doctors, i have a little bit questions in fact, i have a 22 years old cousin, diagnosed with hodgkin’s lymphoma,4th stage, and inflammation of the heart tissue & the heart valve, he’s taking his chemotherapy, my questions are: what is the percentage of curing since he have these heart troubles? secondly, he has been diagnosed with high potassium percentage in blood, is there specific foods can be harmful to him? ( we know about diary products and bananas, but he ate spinach and endives today so is it bad?) and my third question, he’s having a strange ammount of blisters in different sizes in his face ( and that’s from about 4 years) is this a sign of HIV?? its increasing very quickly these days and spreading along his face  please i need to have answers because we want to help him as much as we can and to take care of him... thank you in advance