After undergoing surgery last month to remove brain tumors , the former “Real Housewives of Beverly Hills” star, 43, revealed more cancer has been found.

“Update from my scans today: I have multiple tumors in my brain that weren’t able to be removed via surgery. I also have 2 tumors in my lungs. These are all metastases of my melanoma,” Mellencamp wrote on Instagram on Friday. “The doctors are hopeful that immunotherapy will effectively treat them.”

Teddi Mellencamp, 43, gives health update after undergoing surgery to remove brain tumors: ‘The fight is not over’

The podcast host also shared how she is doing mentally, adding, “I am feeling positive— that I will win this battle, that I got this wig (I like the short hair, just not the bald spots), and that I can remember all of Angelina’s kids’ names.”

Mellencamp concluded, “Now, as @bravoandy would say: with all due… f*** off, cancer!”

Her former costars took to the comments section to lend their support, with Dorit Kemsley writing, “You got this Teddi! You’re stronger than you realize. I know you’ll win! You’re a fighter, keep fighting… you have a lot of love and support.”

‘RHOBH’ alum Teddi Mellencamp diagnosed with ‘multiple’ brain tumors, reveals buzzed hair before emergency surgery

Kyle Richards echoed Kemsley’s sentiments, penning, “The best moment! Right after your surgery when you weren’t quite sure what year it was and I said “but I bet she can name all of Angelina Jolie’s kids names” and you did.”

On Saturday, Mellencamp posted to her Instagram Story , “Thank you all for the support. I am feeling great and got approval from my doctors to ride today. This makes my heart and soul happy.”

The reality star, who is an avid horseback rider, explained, “If I see you at the show today and you have the urge to try to tell me not to I kindly ask you to refrain. I unknowingly rode with huge tumors in my brain for 6 months and those big ones are gone now. When you are sick or have cancer your mental health is very important.”

Mellencamp noted that she has to keep going and “give myself joy and goals.”

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“I am going to always fight to be my best and find ways to smile and enjoy life. Thank you for coming along this journey with me. I am in no place for negativity or discouragement.

A follow-up Instagram Story showed Mellencamp riding on her horse, writing, “My baby boy would do anything for me. I would do the same for him. Horse of a lifetime. Toad thank you for making me feel alive today.”

The Beverly Hills resident first shared her cancer diagnosis in February.

“For the last several weeks I’ve been dealing with severe and debilitating headaches. Yesterday the pain was unbearable and required hospitalization,” Mellencamp explained on Instagram at the time.

“After a CT scan and MRI, doctors found multiple tumors on my brain, which they believe have been growing for at least 6 months,” the daughter of singer John Mellencamp, 73, continued. “Two of the tumors will be surgically removed today – The remaining smaller tumors will be dealt with via radiation at a later date.”

The wellness coach added that she is “blessed to be surrounded by my children, family, friends, doctors, nurses and surgeons who are doing everything possible to get me back into better health.”

“Thank you to everybody who has reached out, and to everyone who has supported me along this journey,” she concluded.