First, make sure you' re digesting well, to avoid leaving toxins in the gut. Taking a digestive enzyme supplement with each meal will help. It' s important to cleanse the bowel by following a high-fibre, high-water diet. But rather than wheat bran, take a spoonful of flax seeds soaked in water and drink this daily alongside colon-cleansing herbs such as Oregon grape or oregano. Eating foods rich in essential fatty acids such as oily fish, nuts and pumpkin or sunflower seeds, and taking an omega-3 fish oil supplement (1 or 2 1g fish oil capsules a day) can help reduce the inflammation and moisturize the skin.