Here’s yet another reason not to spend too much time on your cell phone.

The British Association of Dermatologists said an unexplained rash on people’s ears may be caused by too much mobile phone use, Reuters reported.

The group, citing published studies, said the rash affected people who develop an allergic reaction to the nickel surface on mobile phones after spending too much time on the devices.

"It is worth doctors bearing this condition in mind if they see a patient with a rash on the cheek or ear that cannot otherwise be explained," the group said in a news release. "In theory it could even occur on the fingers if you spend a lot of time texting on metal menu buttons."

The red, itchy rash, also known as “mobile phone dermatitis” typically appears on the cheek or ear, depending on where the metal part of the phone comes in contact with the skin, the group said.

Click here to read more from Reuters.