Kerry, however, argues that her daughter is a normal 8-year-old, not fazed emotionally, or physically, by the cosmetic procedure.
"Do you see anything wrong with my daughter, psychologically?," she asked. "I don't see anything wrong with her. I have a normal child. It's not breaking her spirit. She's happy. She runs around. She's smart."
And Kerry also takes point with critics in that same medical community who say the Botox could cause adverse reactions in her young daughter.
"I don't do enough on her to make a big difference," she said. "Just on the lines."
The potential for both emotional and physical damage makes critics like Dr. Sophy hesitant to prescribe or administer Botox to children, so Kerry must rely on her own methods to gain access to Botox for Britney.
"I do have a trusted source where I get it. He is a behind-the-scene doctor," she said.
And where there is one "trusted source" for Kerry and Britney's Botox, there must be more. Kerry says she is not the only mother giving Botox to a child.
"I got influenced by some of the moms when we went to one of the pageants," Kerry said about what prompted her to begin Britney on Botox. "They were telling me about the lines on her face. A lot of the moms are giving their kids Botox. It happens."
The tough competition of the pageant world also prompted Kerry to try another type of cosmetic treatment on Britney, one that even middle-aged women find painful: waxing.
"I just don't think it's ladylike to have hair on your legs," explained Britney. "I did that one time. It was super, super hard. It hurts."
"They call it little fluffy hair," said Kerry. "They get judged on all that stuff. It's a tough world, the pageant world, I'm telling you. The kids are harsh."
But even the toughness of the pageant world can't persuade Britney to continue waxing.
Asked if she would do it again, the normally talkative 8-year-old was ready with a one-word answer: "no."
And Britney's mom, Kerry, is similarly defiant when it comes to defending herself against critics who question what she is doing as a mother to her own daughter.
"I'm a great mother. I've taken care of her by myself my whole life," she said. "And nobody can really tell me what I'm doing is wrong. Because it's me. I live in my shoes. And she lives in hers."
"She's a happy kid," she added. "And that's the bottom line."