★★★★★
For systemic effect, I have found a concoction that takes it away for very long periods of time, usually no matter the stress level.
I make a blended green smoothie out of 1 fuji apple (peeled and cubed), 3 sticks of cubed celery, 1 1/2 C trimmed parsley (without the stalks), 1 inch of fresh ginger (cubed small, smashed with the blade of a vegetable knife and minced), 1 1/2 to 2 cups washed, destalked and cut to bite size green kale (I like the dinosaur kale best), 1 - 2 inch peeled banana, dash of cayenne pepper, 1/3 cup pure pressed unprocessed apple cider or apple juice, 1/3 cup water.
I add all this into the blender (I have a commercial blender that breaks down the cell wall of the kale which is thick and tough) and I blend it about 40 seconds until it is almost as thick as a milk shake. I drink the whole thing for breakfast.
At 50, it works better with enzymes, I think. The more raw vegetables that I eat, the more I can eat without the stomache ache I used to get when I eat vegetables. All ingredients are organic. The water is bottled spring water.
I drink this daily and have no outbreaks or tingling for about 3 months after I haven't had one. In the summer I trade the apple for a pear or a peach (yummy). This tastes great no matter which fruit you use. Should last you all morning, unless you need enzymes. Best Wishes.