How to treat paranoia?

Have an. Evaluation by your family doctor to rule out any underlying medical issues and then see a psychiatrist. Paranoia is only a symptom that can occur in a number of illnesses. Treatment depends on the illness that is causing this symptom.
Depends on the cause. Paranoia is a symptom which, like most symptoms, can have multiple causes, so treatment depends on identifying the cause. Severe paranoia can be caused by schizophrenia but paranoia can also be caused by bipolar disorder, anxiety, personality disorders, alzheimer's disease, hyperthyroidism, infections & reactions to a wide variety of both prescription and non-prescription drugs. Please see comment.
Psychotherapy & meds. Typically psychotherapy and medication are the best approaches. Depending on symptom severity, I would recommend psychoanalysis.

Related Questions

How can I treat paranoia?

See a therapist. "Paranoia" is a specific symptom, usually associated with psychotic disorders. The term is often used in common conversation to refer to all kinds of fears, anxieties, suspiciousness, etc. If it is bothering you it could be worth at least consulting with a therapist to put your mind at ease and get a better handle on exactly where these feelings are coming from. Read more...
Paranoia. SInce paranoia is often very deeply rooted, the most in-depth treatments are psychodynamic psychotherapy or psychoanalysis. Read more...

How do u treat paranoia? I can't go to therapy cause I don't trust anyone is there any other way?

Yes. It is very simple, just talk with a psychiatrist. We understand. Usually, we are very friendly people who will try our best to help you; whatever it is, we re on your side. Or ask your dr for advice, things can get better soon if you take action. Best wishes to you. Read more...
Paranoia. Perhaps you trust your clergyman. See him for help. Read more...
Share your suspicion. If you go to therapy. Tell the therapist right away that you don't trust him. It takes courage and trust to say that. No need to be ashamed of being paranoid. In america it effects everyone. Sometimes just below the surface. Look at the democrats and republicans. Read more...