“Full House” star Dave Coulier reveals 'very aggressive' cancer diagnosis

“I went from, I got a little bit of a head cold to I have cancer, and it was pretty overwhelming,” Coulier said. “This has been a really fast roller coaster ride of a journey.”

Full House actor and comedian Dave Coulier has revealed he is battling a "very aggressive" form of cancer.

The 65-year-old star opened up about his health in a new interview with PEOPLE, telling the publication that complications from an upper respiratory infection in October led to swelling in his lymph nodes, which he said swelled to the size of a golf ball before his doctor recommended tests to determine the cause.

“Three days later, my doctors called me back and they said, ‘We wish we had better news for you, but you have non-Hodgkin's lymphoma and it's called B cell and it's very aggressive,’” he said. “I went from, I got a little bit of a head cold to I have cancer, and it was pretty overwhelming,” Coulier continued. “This has been a really fast roller coaster ride of a journey.”

Coulier added that he and his wife, Melissa Bring, partnered together with friends in the medical field to map out a strong treatment plan that, he said, dramatically increased his chances of survival.

“We all kind of put our heads together and said, ‘Okay, where are we going?’ And they had a very specific plan for how they were going to treat this,” he recalled, reflecting on good news that a bone marrow test came back negative for cancer.

“At that point, my chances of curable went from something low to 90 percent range," he elaborated. "And so that was a great day."

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He also noted that he began the first of six chemotherapy treatments only two weeks after his initial diagnosis, and that he preemptively shaved his head in the process.

Although Coulier told the outlet that he has is "good days" balanced with "bad days" amid treatment, he recommended that anyone listening to his story gets regular testing to ensure they catch any potential cancers earlier.

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“Take great care of yourself, because there's a lot to live for. And if that means talking with your doctors or getting a mammogram or a breast exam or colonoscopy, it can really make a big change in your life," Coulier said, while preparing to become a grandfather himself, as his 33-year-old son, Luc, and wife, Alex, are expecting a baby at the top of 2025.

“Take great care of yourself, because there's a lot to live for,” he finished. “And if that means talking with your doctors or getting a mammogram or a breast exam or colonoscopy, it can really make a big change in your life."