Collocations for therapy - noun

alternative, complementary
occupational, physical (AmE) (physiotherapy in BrE)
drug, gene, hormone, radiation
hormone replacement
art, aversion, relaxation, shock, etc.
retail (humorous)
She indulged in a bit of retail therapy.

speech
behaviour/behavior, behavioural/behavioral, cognitive
the efficacy of cognitive behavioural/behavioral therapy

family, group, individual
They discuss their problems in group therapy sessions.

course

need, require, seek
be given, have, receive, undergo
He will have to have speech therapy.

be in, go into
I went into therapy because my doctor suggested it.

group, session

a form of therapy
the use of hypnosis as a form of therapy