It is highly recommended to recite the following Dua 21 times on the 15th day of Shaaban
Remember us all in your prayers
O Allah, verily Thou art Sublime, Patient, gives respite, (because) we do not have the capacity to withstand the conditions that take effect under Thy authority. O Allah! O Allah! O Allah! Mercy! Mercy! Mercy!
(Safety from the) rampant epidemics, accidental death, evil events, and rejoicing of enemies at (our) misfortune. O our Lord take away from us the pain and torment, truly we believe in Thy Mercy, O the most Merciful!