Trader Joe's has a relatively high quality chewable multivitamin for like $5 that will last you a month. Granted, your body can't process everything in it, but it is great for the basic fat solubles and minerals. I'd be hitting that right about now. But only one a day! Excess vitamins can be dangerous.
Otherwise, collard greens and kale are cheap and about as good as a multivitamin if that floats your boat.
This is, of course, assuming your diet is somehow responsible for your condition. Which has yet to be defined.