Read this dua to suppress anger
A'oozubillahi minash shaitanir rjeem.
I seek refuge with Allah from Satan.
Virtue
On the authority of Hazrat Mu'adh Ibn Jabal (RA), he said, Two people were abusing each other in front of the Prophet (ﷺ). Even one's face shows a hint of confusion. Then the Prophet (ﷺ) said, I know a Kalima that if he recites it, his disease will be cured. .
Reference: Sahih Bukhari, Hadith No: 6048; Sahih Muslim, Hadith No: 2610; Sunan Tirmidhi, Hadith No: 3452
