U have to give more details about the patient's age sex and symptoms. As he or she is suffering from schizophrenia ,must be some medicine must be regularly taken. Along with this,u must consult a physician alopathy or homoeopathy in a regular basis for ur over all physical chekup. He will surely give u medicine. Exercises, yoga,proper diet,proper supplement like plant protein supplement,8 hrs sleep etc are very good gor the patient.