Well the truth of the matter is ... just don't do it.
I think many of us get cravings for certain things during that time of month. For me it's salty, crunchy things like potato chips. I absolutely crave them like you wouldn't believe. But I can't give in to my cravings all the time ... just like I can't go buy whatever I want whenever I want.
It did really help me to start thinking of eating just like I thought of running my finances. I may *want* to go buy the gorgeous $400 pair of boots I saw at the store, but if I do, I won't be able to pay my electric bill. So I don't. It's the same with eating junk food ... I may *want* to eat an entire bag of potato chips or drive through McDonalds or whatever ... but if I do, I'll gain weight back. So I don't.
And, on those days when the cravings are irresistible, then try to have something around that makes a good substitute. For example, I can airpop some popcorn and have it for 150
calories with some seasoning salt - yeah, it's a little salty and I'll retain water, but at least it's not a bag of potato chips or a large fries from McDonalds.