What is the treatment for my 18-year-old son who suffers from severe anxiety, talks to himself, screams and curses when someone enters his room, does not know stability, and fears anything new?

We advise the questioner to contact the consultation department of IslamWeb, or to present her son to a trustworthy and religious psychiatrist. We also recommend seeking Ruqyah (Islamic exorcism/healing), as it contains healing by Allah's will. There is no harm in presenting him to those known for their righteousness who practice Ruqyah.