The 80-year-old’s husband Scott Mitchell first revealed the former EastEnders favourite, who played Peggy Mitchell in the BBC Soap, had been diagnosed with Alzheimer’s disease in a heartfelt announcement last month.
Breaking the sad news, the 55-year-old explained the progression of her condition meant her symptoms had become noticeable.
Now, Barbara’s former co-star Rita Simmons, who portrayed her on-screen niece Roxy Mitchell, has spoken out about the actress and her health.
During the interview, the 41-year-old revealed the BBC favourite “has had a real dip” recently, as she explained she has seen Barbara become more confused.
Speaking to Daily Star Sunday, Rita said: “From what her husband Scott Mitchell said to me, she has had a real dip lately.
“What I have seen is more confusion, which is really devastating to watch because she always had her marbles together and was always the life and soul of the room.
“It is an incredibly sad thought that my Aunty Peggy, which is what I’ve always called Barbara, isn’t herself.”
Rita went on to reveal that while Barbara had been dealing with “dark days”, she has also had more positive moments too.
“From what Scott says there are some dark days but they still have good days, too.
“Scott is doing an amazing job. I don’t know what she would do without Scott.”
Earlier this month, Ross Kemp spoke to Express.co.uk about his friend and former colleague’s condition.
Speaking at the Diva Awards, the 53-year-old spilled: “I spoke to her [Barbara] on the phone this week and she is doing a lot better than she was.
“I have to say I am really proud of her and Scott, they are both really close friends of mine.”
When quizzed about whether Barbara had been concerned about the public finding out about her condition, he revealed she hadn’t been.
“I think she honestly feels relieved, her and Scott,” the actor said. “I think she done the right thing.
“It’s a great thing to do and I’m quite proud of her.”
Earlier this month, Ross revealed he had recently paid Barbara a visit for a cup of tea and a chat.
Speaking on Good Morning Britain, the star insisted she was “on great form”.
When quizzed about how she was, he said: “She’s got this great ability, when she walks through that front door, she’s on.
“When I came around it was like seeing my second mum.”
EastEnders continues tonight on BBC One at 8pm.