Teddi Mellencamp opts to wear a wig on "crying days"

She wrote on Instagram: "The day to day decision of wig versus no wig. Crying days I tend to pick the wig.

"The highs and lows of treatment for stage 4 brain and lung tumors are pretty extreme. Please go get your yearly checks.(sic)"

Teddi urged her followers to have any moles checked for signs of melanoma.

She added: "It's melanoma awareness month. No better time than now to book and remind a friend or loved one."

'The Real Housewives of Beverly Hills' star revealed last month that her tumours have "shrunk or disappeared" and she is hopeful of making a full recovery.

She wrote on Instagram: "One update I couldn't wait to share!

"All tumors stage 4 (metastasized melanoma in my brain and lungs) shrunk or disappeared so I have 6ish more weeks of immunotherapy and doctors believe I will be healed if everything stays on course.

"Thank you to everyone who has sent their love, prayers, and positivity [heart emojis] (sic)"

She also shared a positive update in an accompanying video message.

Teddi said: "Honestly, the crying is already done, but I just finished with all of my scans and my tumours have significantly shrunk, which doctors believe means that this all will work and that I will be back to myself and feeling good.

"I have two more sessions of immunotherapy and then hopefully, I am done, and I will be cancer-free.

"I'm going to keep a positive outlook because that's the way my doctor just spoke to me. He's like, 'You did this, you got this.'"