"intensive treatment" is a correct and usable phrase in written English.
For example, "The patient's condition improved significantly after receiving intensive treatment for two weeks."
He continues intensive treatment as an outpatient.
They have a number of special programs of intensive treatment.
But only a tiny fraction of alcoholics get intensive treatment.
She needed intensive treatment -- the sooner the better, by Ms. Schelling's account.
Providing intensive treatment in the home is cheaper, more effective and more humane than detention.
For this reason, a more intensive treatment (more than once a week) can be very effective.
He hopes intensive treatment will solve the riddle of the ailment.
Jackson, 46, is to undergo a month of intensive treatment starting in two weeks' time.
But they operate similarly.Participants undergo intensive treatment instead of prison.
For a more intensive treatment, leave the mask on overnight.
Intensive treatment and supportive care, including oxygen, can help.
