What causes underarm dermatitis, and how can you get rid of it?

Image of a woman in a towel with her hair also wrapped in a towel, raising her arm above her head touching her underarm, in a white frame and set against a dusky pink background.

Up until a couple of years ago, I had no idea you could get dermatitis under your arms. So when I began experiencing dry, itchy and red patches of skin in that area, I was pretty surprised.

But this condition is more common than you’d expect and one many of us have no idea exists until we experience it ourselves. Over the years, mine has flared up several times, and I've done my best to tackle it within my skincare routine - so I've made it my mission to demystify underarm dermatitis.