The singer is making "overcoming Lyme disease," she writes

Credit: Courtesy Avril Lavigne

Things are looking up for Avril Lavigne in her ongoing battle against Lyme disease.

The singer, 31, got some positive news during a doctor’s visit on Tuesday, which she happily shared with her fans through Facebook.

“Overcoming Lyme Disease,” she wrote. “Feels good to have my Dr. smile and tell me how much progress I am making. I’m coming out on the other side batches!!!”

The singer shared a photo of herself receiving treatment, and a second photo smiling from the medical table.

“#Fighter,” she added.

The star has often been candid about the toll the disease has taken on her life. Just over a year ago, after months of feeling lethargic, Lavigne was diagnosed with Lyme.

“I was bedridden for five months,” she revealed to PEOPLE. “I felt like I couldn’t breathe, I couldn’t talk and I couldn’t move.”

Avril Lavigne Opens Up About Her Health Crisis: ‘I Was Bedridden for 5 Months’

Since coming out of the darkest days of her health struggle, Lavigne has been an advocate for Lyme disease awareness.

In September, the star launched a 5-week campaign to raise funds for children and young adults who battle Lyme.

The Prizeo campaign raised $61,007, and one lucky fan – to be announced later this week – will get to spend time with Lavigne and get a speaking role in her new animated film Charming.

“Lyme Disease is an important issue that is personal to me,” Lavigne wrote of the campaign. “Only a small percent of people get the early diagnosis and treatment that is so important in fighting the Disease. I am asking you to join me in helping kids and families receive the treatment they need.”