Hello,
If you are possibly lactose "intolerant" your bowel is unable to digest foods with "lactose" in it. This frequently cause the development of gas.
If you were to stop eating foods with lactose, does the gas that you have go away? Have you tried to remove lactose from your diet?
When you say that your "butt burns" do you mean that your anus burns when you pass stool or gas? Do you have diarrhea?
Pamela, R.N.

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