What Causes Blotchy Skin? Blotchy skin is skin that’s irritated or easily inflamed and the causes can be genetic, environmental or both. Certain skin conditions can cause blotchiness including eczema, psoriasis, an allergic reaction or a common skin problem called rosacea.
Rosacea is a skin condition that mainly affects the face, the result of which is redness in the face, which can be accompanied by small red, pus-filled bumps, that can be mistaken for acne. It requires professional treatment.