My wife(H4) ,kid(h4) and i(h1B) had visa stamped in the month of june and i am in US.Later she was diagnosed schizophrenia (mental disorder) in september.
I am in US for 6 months assignment in H1b and can get extended.As my wife is doing well now with psychiatric medications

i would like to bring her to US as its sponsored by employer and i might not get another opportunity to be in US.

Basically i want to have my kid in US till god permits normal life with my wife's health issues.Now she is doing well and acts very normal under medication.
she has to be under anti psychotic drug and even her doctor has told that she can live a normal life as long she takes her medication.

Is she allowed to enter USA with her health condition and will we get into any immigration conflict when i approach for any treatment in US .....