Two new studies published in the Archives of Dermatology warn that constantly using car seat warmers may increase the risk of skin problems known as "toasted skin syndrome".
According to the studies, regularly being exposed to car seat warmers, even if the temperature is not scalding hot, may lead to a type of skin discoloration known as "erythema ab igne" or "toasted skin syndrome".
The researchers said that the condition was not a burn but was a rash that leads to formation of brown patches and red lines on the skin.
Speaking to the MSNBC Dr Eliot Mostow, who wrote about both the studies, said, "It's probably related to some blood vessel changes and changes in the pigment cells. You get more severe cases with longer exposure. But to be honest, everybody's different. Some people will get it sooner with the exact same exposure. They're more sensitive."