Advise him, remind him to place his complete trust in Allah—healing will come from Allah—so have him make abundant supplications. Perform "ruqyah" for him using the resources available on our Telegram channel, and have him read the last three surahs of the "Qur'an." There is no refuge except with Allah. I also advise you and your family to give charity on his behalf.
If possible, make him juices containing Vitamin C, lemon, orange, kiwi, a clove of garlic, and a small teaspoon of black seed. Also, give him propolis and echinacea syrup, with the advice of professionals.
Don't hesitate to massage his chest area with a propolis balm.
What the science says: stress and anxiety, a spiritual remedy
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 overtakes daily life, panic attacks, or persistent waswas warrant psychological support consistent with your values.
The spiritual remedy: legislated ruqyah
Legislated ruqyah — recitation of the Qur'an, authentic supplications, Qur'an-infused water, honey and black seed — is the foremost of remedies in the professor's teaching, and by its very nature it falls outside the scope of scientific study: it is an act of faith grounded in revelation. It in no way conflicts with medical treatment; the Prophet ﷺ said: "Seek treatment, for Allah has not sent down any disease without sending down a cure for it." Precaution: be wary of anyone who claims to heal through talismans, incomprehensible formulas, or by asking for the mother's name — this is not legislated ruqyah; and never abandon medical treatment on the assumption of a supposed occult cause.
