There is nothing quite like waking up, looking in the mirror, and realizing your skin has decided to have a moment. Maybe your cheeks are suddenly red. Maybe your skin feels hot, tight, itchy, or irritated. Perhaps the moisturizer you’ve used for months suddenly seems to sting. Or maybe you have no idea what happened at all. Yesterday, your skin was perfectly happy, and today it feels like everything you put on it is making things worse. If you have sensitive skin, you probably know this feeling all too well. Sensitive skin can be frustrating because it often seems unpredictable.…