I have largely fixed mine with a dietary change. A few years ago I went to a naturopath and she treated me for leaky gut. I used a particular protein powder for a few months and then switched to pea protein. As a child I got staph infections from scratching, as a mid 20 year old I became a complete weeping mess of skin. The best and most lasting relief I have found is the daily pea protein mix I take.

I would highly suggest finding a naturopath who is well versed in leaky gut syndrome.