Chris Brown's chances to spend time with his daughter may have just gone up in smoke.
The troubled hip-hop star's ex-girlfriend, Nia Guzman, believes the "Run It" singer is responsible for giving their 1-year-old daughter asthma by frequently smoking in front of her, TMZ is reporting.
Guzman has reportedly filed paperwork to alter Brown's visitation rights — requesting that he either hire a full-time nanny or lose the right to spend time with Royalty altogether.
It's unclear whether Guzman believes Brown has been smoking marijuana or tobacco in front of their daughter, though he has been known to use both extensively, according to the gossip website.


  Guzman claims Royalty reeks of smoke every time she returns from a visit with the singer, and she is requesting that a judge ban Brown from smoking — or consuming drugs or alcohol — in front of their child. She also wants Brown to be subjected to random drug testing.
Brown has a history of substance abuse, and TMZ reported in November that the singer’s friends and family are concerned he might lose custody of Royalty because he often drinks codeine-based sizzurp in front of her.
These alleged parental issues serve as the latest dilemmas for the much-maligned Brown.
The "Say Goodbye" crooner pleaded guilty to assaulting singer and then-girlfriend Rihanna in 2009, and three years later, his entourage got into a bottle-throwing altercation with fellow artist Drake and his posse at a New York nightclub.
Brown was also arrested for three separate crimes in 2013 — including allegedly shoving a woman at an Anaheim nightclub.
This long line of bad behavior has forced the popular artist to cancel several shows — as both Canada and Australia denied his visa requests last year due to his criminal background.
Then last month, Brown was investigated by authories for allegedly punching a women in the face at a Las Vegas hotel — but authorites later ruled he won’t be charged.