This is a commun practice in every treatment for behavioral addicts. This kind of addiction pathology can't be treated with medicines only but it requires a full process behavioral treatment which all the environment should part of. The most important is that the patient himself should be aware of all of this.
What you say is very important, the person who is in that stage of addiction must have the support of everyone, of course first they have to think that if they are going to get better, they must have every intention of doing their part so that they can be cured, it is not easy because emotional states always tend to attack the person from within, but seeing so much support, from family, friends, doctors it is possible that everything will turn out well and the objective will be achieved.
The reason behind this technic based on community support is to not let the patient thinking that he can practice the compulsive activity he suffers from even if he is taking treatment medicines. There must have someone near to him to forbid him from doing any mistake that can even destroy a long period process of treatment, especially psychological treatments. The method consists that the patient should be in only two cases for enough time, either with someone having time to spend near to him, or sleeping.