Facial redness and eczema can be caused by a number of conditions. Irrespective of the cause, taking some precautions can help reduce if not eliminate redness completely. Generally, stay away from irritants like essential oils and benzoyl peroxide; don’t overload your skin with too many active ingredients; limit exposure to the sun, and don’t exfoliate more than twice a week. Lastly, embrace healthy eating and living. P.S: All that being said, if you're suffering from eczema, it would be best to visit a dermatologist. They can help you decide if you should go for skincare products or medical-grade products.