thank you for your query,
some of the TB medications have neurological side effects hence the hallucinations
.as advised by the doctors i would also advise you to gradually taper the drugs.
the period after stoppage of treatment is very critical.hence proper precaution needs to be taken to prevent any recurrence of TB.
the best way to prevent recurrance is to complete the drug course.and have regular x-rays,to see the prognosis.
wishing you good health.