Responding to the Adhan and Supplication After It
Explicitly established in Quran or Sahih Hadith as ruqyah/protection for this exact matter.
O Allah, Lord of this perfect call and established prayer, grant Muhammad the Wasilah and virtue, and raise him to the praised status which You have promised him.
How to Perform / When to Recite
Listen attentively to the muezzin and repeat his words exactly as he says them, except when he says 'Hayya 'alas-salah' and 'Hayya 'alal-falah', say: 'La hawla wa la quwwata illa billah'. After the adhan finishes, invoke blessings upon the Prophet (ﷺ) and recite the supplication: 'Allahumma rabba hadhihid-da'watit-taammah...'
Important Safety Note: Ruqyah is a means of seeking Allah's protection and healing; it does not replace medical care. Never hang amulets or go to fortune-tellers/sorcerers.