بسم الله الرحمن الرحيم
(Fatwa: 1313/1313/M=11/1434)
If your brother does not have any medical problem then you should see any good and expert Amil. But if it occurs due to bad dream then he should recite اعوذ بالله من الشيطان الرجيم and turn the side and sleep. Also he should recite Surah al-Nas and Surah al-Falaq before going to bed and blow on the body.
Allah knows Best!
Darul Ifta,
Darul Uloom Deoband
