My father is suffering from psychosis(depression) for about 3 months. We have been to a psychiatrist and he is under medication for 3 months. My father's major problem are anxiety and fearfulness. Thought under medication for months his anxiety and fear has gone down But still he has not recovered enough to be considered a normal man. He is not able to focus on his work as he used to. He was in a habit of smoking and drinking but from the time his medication started he has stopped drinking though he still smokes about 7-8 cigarettes a day. Does smoking effects his mental health? Please help....