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Yes. You can always use a regular credit card to pay for an expensive medical treatment. Look for credit cards that come with 0% intro APRs first place. The cards with zero interest may also offer rewards on purchases and come without annual fees. The card that combines all three benefits will be an ideal option for you. For example, it can be the Discover it® Miles card. It has a 15-month 0% intro APR on purchases (when the introductory interest rate is over, the ongoing APR will apply), no annual fee, and rewards with 1.5 miles for every dollar spent on purchases. More than that, if you have never had this card, all your first-year miles will be matched. So, basically you will earn double miles your first year.