Many approaches and treatments have found to be successful in reducing PTSD. Some of the most successful include eye movement desensitization and reprocessing, participation in rap or therapy groups, psychological debriefing, insight therapy, and behavioral exposure techniques.

Exposure treatments are some of the most effective treatments for phobias. Exposure treatments include systematic desensitization, flooding, relaxation training, and participant modeling. Avoidance is not a viable means of overcoming a phobia.

Dissociative identity disorder is highly disruptive due to the overarching presence of subpersonalities that are controlling different aspects of a person's life. The goal in therapy is to fuse all the personalities, not help them all obtain equal power and "face time" in the life of a person.

Humanistic psychology, pioneered by Carl Rogers and Abraham Maslow, is a psychological perspective that advocates the study of the whole person. Unconditional positive regard occurs when therapists support and accept the client wholeheartedly, regardless of the client's expressed views and behaviors.

Seasonal affective disorder is a mood disorder associated with episodes of depression during the winter months, and appears to be related to a lack of sunshine causing increased melatonin production by the pineal gland. It can be helped by phototherapy with bright white fluorescent lights.

Behavorial therapy is used to change maladaptive behaviors such as smoking or alcohol abuse. Cognitive therapy is used to remove negative thoughts that harm a person's emotional health. Psychotherapy is any means of treating psychiatric disorders by mental rather than pharmacological means. Electroconvulsive therapy is the use of electric shock to produce convulsions and treat drug-resistant psychiatric disorders. 

Free association, dream analysis, resistance, and transference are all aspects of psychodynamic/psychoanalytic therapy. Free association is when a patient talks in a relaxed and aimless way about anything that comes to mind so the therapist can try to determine any thoughts that might be repressed. Dream analysis is when the content of a patient's dreams is analyzed in order to understand the patient's unconscious, especially their wishes. Resistance is when a patient blocks memories from the conscious mind and/or becomes resistant to therapy when the therapist is getting near the heart of why the patient is in therapy. Transference is when the patient begins to react to the therapist in ways influenced by their childhood desires. 

Unconditional positive regard is an aspect of person-centered humanistic therapy. 

SSRIs, cognitive therapy, group therapy, and person-centered therapy are all treatments for depression; systematic desensitization is a therapy for anxiety disorders, especially phobias. 

SSRIs CAN be, and are often, combined with cognitive talk therapy. In fact, it would be quite rare for a person to be prescribed anti-depressants without some element of talk therapy being used as a part of their course of treatment.

Though the amount of drug they must take increases, the types of effects of the drug are the same. Tolerance can eventually lead to withdrawal symptoms if the drug is not taken.

There are many reasons why people may resist or not seek out treatment for a psychological disorder. Social stigma surrounds psychological disorders and their treatment; someone might be afraid of seeming "crazy" if he or she seeks treatment. In addition, some disorders, particularly personality disorders, are characterized by a lack of awareness, so people who have them might not realize they need help. Lastly, people might be overwhelmed at the thought of how/where to start treatment and worried that therapy and medication will be too costly.