Former Full House star Dave Coulier is undergoing treatment for tongue cancer just under a year after beating non-Hodgkin lymphoma .

Coulier revealed that he’s now battling HPV-related oropharyngeal tongue cancer in a new interview with Today . “To go through chemotherapy and feel that relief of whoa, it’s gone, and then to get a test that says, well, now you’ve got another kind of cancer … it is a shock to the system,” Coulier said.

Oropharyngeal tongue cancer forms in the middle section of the throat, known as the oropharynx, per the American Cancer Society . The oropharynx includes parts of the tongue, the back part of the roof of the mouth, and the tonsils, all of which help with breathing, eating, swallowing, and talking. Saliva is produced in the oropharynx, too.

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