Speaking to InStyle this past summer, Simpson explained why she had rarely spoken up about eczema before, recalling one story from her teenage years that stuck with her.
She told the magazine, "I'm always open about my insecurities, and I feel like I'm pretty transparent. I do believe that there is a way that we can find confidence in ourselves. I've had eczema since I was a kid. It's not really anything that I've ever talked about, and I don't really know why to be honest. I think because I had it a lot when I was in junior high and high school."
"Some of my memories of it when I was younger was being a cheerleader and then having to throw a sweatshirt on really quick after doing a routine or practice, even though it was so hot in Texas," she explained. "They hug in Texas, so everybody would always come up and hug me and be like, 'What's on your arms?' I would just blame it on a heat rash."
She touched on this during her talk with Shape as well."I've dealt with eczema since I was a kid," she said. "But after having my daughter Birdie, I had such bad flare-ups that I wouldn't even show the pictures of me holding her to my friends."
Since then, Simpson has become a spokesperson for Eucrisa, a topical prescription for eczema relief.
But there are other skincare treatments the star swears by to keep her looking her best and feeling her most confident.
The "With You" singer added, "During this pandemic, I’ve gone down a skin-care rabbit hole, and I’ve been using a red-light therapy mask too."
"I'm obsessed with doing red-light therapy treatments at home," she continued. "I place the anti-inflammatory device everywhere on my body, including my scalp, stomach, and boobs."
And this dedication to skincare has yielded great results for Simpson--even giving her a boost of anti-aging benefits.
She explained, "I have fewer wrinkles at 40 than I did at 38!"