Amanda Bynes struggling to adjust to psychiatric treatment

Los Angeles - Amanda Bynes is reportedly "struggling" with rehab.

The troubled actress, 28, who underwent treatment at a facility last year, was placed under an involuntary psychiatric hold in Los Angeles on Friday but it is thought she's having difficulty "adjusting".

A source told RadarOnline.com: "Amanda is having a tough time adjusting to being in treatment again. However, the facility she is in is truly first class and it will be a calming environment to deal with her issues out of the spotlight."

The star sparked concern over her mental health earlier this month after she was arrested for driving under the influence, accused of shoplifting, and claimed her father Rick sexually abused her as a child.

However, she has since retracted the allegations about her dad.

Amanda spent five months in a treatment facility in July 2013 when she was placed under an emergency 5150 hold after being arrested for starting a small fire in a stranger's driveway.

She was released in December and appeared to be getting her life back on track until her conservatorship - which legally enabled her mother Lynn to take care of her and her assets - came to an end last month.

The budding fashion designer will be held for 72 hours and her parents reportedly hope to secure another conservatorship during that time.

Lynn previously denied reports her daughter had been diagnosed with Bipolar disorder and Schizophrenia.