Article continues below advertisementDave Coulier is right back in the middle of a scary health battle after beating stage 3 non-Hodgkin Lymphoma earlier this year.The Full House star revealed during an appearance on the Tuesday, December 2, edition of Today that he was recently diagnosed with p16 squamous carcinoma - a type of head and neck cancer specifically found on his tongue. "It was a really tough year, chemotherapy was grueling," Coulier, 66, explained, noting his latest devastating diagnosis is "totally unrelated to the previous cancer that I had.