In 2017, Emalee Morem was 40 weeks pregnant with her first child. At the urging of her providers, she had an extra ultrasound, just to make sure the baby was OK. After the scan, Morem and her husband went out for lunch. But sitting in the sunshine on the patio at the restaurant in Minneapolis, Minnesota, Morem started to feel uncomfortable. “My belly felt very hot while we were eating,” Morem says, “and when I got home, I looked at my belly and saw this horrible red, patchy rash.” Though the rash wasn’t painful, Morem was concerned. “It didn’t hurt, but it obviously wasn’t normal,” she says. “And I’m sure it was from the ultrasound gel. After the ultrasound they just wiped my belly with a dry paper towel or cloth, so my belly didn’t get washed off well, I could still smell the gel on my skin, and the rash …