Agoraphobia is characterized by a fear and anxiety of public places and open spaces, particularly the fear of not being able to get help in the event of an anxiety attack.
The first thing to know is that the Muslim must never despair, and must always have trust in Allah. They must also make use of every available means to treat themselves, whether natural or spiritual.
Moreover, there is a door that opens every day: the door of supplication. We must also remind ourselves that our Lord hears and sees everything, and that He opens this door to whomever He wills. One must never despair, and Allah becomes angry when His servant does not ask Him for anything.
Human beings grow weary of being asked repeatedly, whereas Allah never grows weary. Our Lord sent down illness together with its remedy; the remedy can in fact be spiritual, particularly through supplication, charity, prayer, or seeking forgiveness. Every servant should try to bring all these elements together, and to be patient while hoping to obtain Allah's blessing.
What the science says: stress and anxiety
Here is what published research says about the remedies mentioned above, for context only — these studies address material causes; healing belongs to Allah.
Stress and anxiety
Chronic stress raises blood pressure and inflammation, and contributes to triggering many diseases (Arthritis Res Ther, 2010); conversely, calming plants (CNS Drugs, 2013), physical activity, and good sleep reduce anxiety. The first remedy remains that of the heart — dhikr, prayer, trust in Allah — which the professor places above all else. Precaution: anxiety that overwhelms daily life, panic attacks, or persistent waswas warrant psychological support that stays true to your values.