Welcome to Cancer Chat Christopher although I'm sorry about your father in law's diagnosis and what he's currently contending with.
As you've made your post in our cancer nurses section of the forum I just wanted to let you know that they return from their Christmas break tomorrow and will reply to your post as soon as they can. If you would like to speak with them in person, their helpline (0808 800 4040) will be open tomorrow between 9a.m - 5p.m.
I realise this was a couple of days ago now so this may be sorted, but I would suggest you give his chemotherapy unit or specialist nurse (CNS) a call. They will then be able to assess him and decide on whether he needs some medication for the hiccups. I've placed here, which may be useful, a link to our page on hiccups and cancer.
Take care, and I hope this is sorted for him soon.
