Husband is having surgery tomorrow but has a migraine today. He is not allowed to take ibuprofen or aspirin. Can he take maxalt? Tylenol (acetaminophen) isn't working

Sleep. Your husband is having surgery tomorrow and he is having a migraine. Your doctor does not want him to take nsaid. Try having him sleep. The onset of a migraine or headache may be stress of surgery. Many patients note that when medications don't work that sleep does. It's a natural way. Be well and hope surgery goes well. Make sure to use hibiclens towel tonight for skin.
Yes. Maxalt (rizatriptan) is a triptan, a migraine-specific medication that is unrelated to the class of medications called nsaids that should be avoided before surgery due to bleeding risk. It is fine for him to take the Maxalt (rizatriptan) today. Good luck with the surgery.