There are lending schemes for medical expenses, pretty sure GE offers one.

If you get a credit card, research your options because depending on how long you are planning to take to pay it off, they can be a bit of a trap. It's worth checking out the value of the interest free period vs how much you would save on a card with a lower interest rate. Also, some companies offer a low or no interest period to transfer your balance from an existing credit card.

Also, check out whether there are any credit societies or friendly societies offering unsecured personal loans. You might get further with a credit society than a bank.