"If it will somehow keep this in remission or stop it from coming back, I'll be able to do it. But I haven't been put to the real test. The real test is driving by a (American fast food outlet) Five Guys and not stopping!"
Mickelson said he now has his sights set on deposing the out-of-sorts Tiger Woods as world number one.
"When I said I wasn't thinking about it too much I really wasn't - I was more concerned about getting through some of this stuff," he said.
"Now that we seem to have a treatment that works and I feel great and I can work out and practise again I'm looking forward to getting my game sharp for this week and the FedExCup and the Ryder Cup."
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