I’d take 3 months in your suitcase if you can.
I think if you’re diabetic, you can get an NHS exemption card so prescriptions will be free. Do check this out. Just be prepared for a monthly balls-up If you end up registered at a crappy Health centre and equally crappy pharmacist.
Just checked, yes she can.
https://www.nhs.uk/nhs-services/pres...prescriptions/