Tricky
Briefly immortal
As has been discussed here and by Randi himself, you do not have to cure anything. You really don't even have to treat any symptoms, although you could if you wanted.jref test is baseless it is disease based we do not claim to cure any disease.
As I understand it, you have two unlabeled bottles, one which contains a homeopathic mixture of solvent and solute of your own making, and one with containing nothing but the solvent (water, in most cases). If you can tell them apart in a statistically valid number of trials, you win. Nothing about a cure. Nothing about treatment even, although if you decided to use treatment of symptoms as the way to tell them apart, that would be permissable.
What could possibly be more fair? What could you possibly be afraid of? If you can tell them apart in any manner whatsoever, including by trickery, you win. But I will warn you, Randi's folks are hard to trick. If you are afraid of being caught at your trickery, that is a very valid fear.
Here's one I recommend. Cold sores, or fever blisters as they are sometimes called. They satisfy everything that could be needed for a proper test. They are very common. They are almost never dangerous, and they go away in a length of time that varies, but not widely. Also, they are a symptom, not a disease. The big bonus is that if you could show that you have a treatment that works, the Randi million would be chickenfeed.