Hot chocolate and lactose intolerance
It's gonna depend on how much lactose it has in it. You could call the manufacturer and ask how much lactose is in it. Or you could just take the Lactaid to be safe.
Please note: I AM NOT A DOCTOR. If you want medical advice, talk to your doctor. Whatever I post, there is probably some surgeon or other health care provider somewhere that disagrees with me. If you want to know what your surgeon thinks, then ask him or her. Check out my blog.