What about anti histamin drug, like for examble cyproheptadine?I didn't say that. Orally taken DAO enzymes work for both: histamine brought and liberated. 1 000 000 units at least, at each meal, 5 - 10 minutes before meal.
And you need to care for what you eat (moderation).
It supposes you have microflora under control.
Is there "heavy" sideeffect associated with it?