Hi there DMC
I am sorry to hear about your husband. I do have some experience with the kidney cancer as my father has it also. As you may have read the other post on the "kidney cancer warriors". May I ask if the Interferon is a IV type treatment. If so it is also something they use to treat Kidney cancer and this is probably why it may seem like they are only treating the melanoma. Please correct me if I am wrong. Ask questions with the doctor if you are unsure.
If you need I will be here to listen and answer any other questions you may have. If i can help I will.
A/F Wendy "lilsis"
prayers and thoughts are with you both.