Article continues below advertisementDoctors are sounding the alarm about a disturbing rash that appeared on President Donald Trump's neck in videos and pictures from a Medal of Honor ceremony at the White House on Monday, March 2.While the president's White House physician, Dr. Sean Barbabella, stated that the reddish rash visible on the right side of the president's neck is the result of a "preventative skin treatment," medical experts outside of the White House are crying foul.