Atopic dermatitis (AD), also called eczema, is a skin condition associated with repeated periods of worsening symptoms known as flares. Researchers believe that changes in skin barrier function may occur before visible skin changes or symptoms develop. The investigational Nevisense Go device uses Electrical Impedance Spectroscopy (EIS), which measures electrical properties of the skin related to skin barrier function. Previous studies using EIS have shown associations between impedance measurements and skin barrier changes in AD. This study will collect EIS measurements from affected and unaffected skin over time to evaluate whether these measurements may help estimate the likelihood of AD flare onset before visible signs or symptoms occur. The study is observational because device measurements will not be used to guide participant treatment or clinical care during study participation.