What is blemished skin? Blemished skin is a type of skin that regularly shows signs of inflammation, spots and other blemishes. This happens when the skin is not in balance, reacts to external or internal stressors, or when there is an intolerance to something. What can be done for blemished skin? Firstly, it helps to understand what is causing the blemishes. As with sensitive skin, it is particularly important to repair and strengthen the skin barrier in the case of blemished skin. For existing blemishes, astringent and detoxifying products can help, as can intensive soothing masks, which can soothe inflammation and absorb sebum and pus.