Well, about the best thing I've done for sugar cravings is to cut out all sugar, sucrose, etc. for 2 weeks--and use protein instead, like low carb whey protein shakes or a boiled egg or cheese & salad veggies. Making small meals every 3-4 hours also helps.
Once you get all sugar out of the diet (and all bread, pasta, grain-type carbs) for that length of time, then the cravings disappear. Tough in the beginning, though.
I have a chinese herbalist doctor also, who gave me some NEEM capsules to take for about 3 weeks, which actually kill the "bad boy bacteria" down as you're doing this, to keep them from coming back.
It helps me to envision "leaky gut" syndrom from the rooted yeast bacteria to keep the nerve up to starve the suckers when they beg for sugar. None of us wants leaky gut!