Here are some medical recommendations, published in one of the most important medical websites, to cure or avoid anger.

1- Abdullah Ibn Abbas (may Allah be pleased with them both) narrated that the Prophet (Peace Be Upon Him) said:
"teach, promise, don't preach hardships and if one of you got angry he should stay silent"
(Imam Ahmed in his Musnad 1/329, in Saheih Al gaame' 693, in Al tyalessy 2608 and in Al adab Al mofrad 245 by Al Bukhary)...

The medical recommendation says:

Take a “time out”...counting to 10 before reacting...

2- Abu Thar Al Ghefarey (may Allah be pleased with him) narrated that the Prophet (Peace Be Upon Himsaid :
"if one of you got angry while standing he should sit till he calm down, and if he did not, he should lie down"
(Musnad of Imam Ahmed 5/152, Saheih Al gaame' 694, Fayd Al Kadeer, Al manawy 408, Abu Dawood 4782 which is corrected by Ibn Hebban 5688)...

The medical recommendation says:

Do something physically (meaning change your physical status)...

3- A narrative about the Prophet (Peace Be Upon Him) mentions that he said: "Anger comes from the devil, and the devil is created from fire; and water extinguishes fire; so if you got angry you should go for ablution"

The medical recommendation says:

Swim

4- Salman Ibn Sard narrated that two men came to the Prophet (Peace Be Upon Him) one insulting the other with an angry red face then the Prophet (Peace Be Upon Him) said:
"There are words I know if he uttered, he would calm down; Allah forbid the devil Dieting "...

The medical recommendation says:

Find ways to calm yourself. Repeat a calming word or phrase to yourself such as “Take it easy!"

5- Abu Hurairah narrated that the Prophet (Peace Be Upon Him) said:
" the strong is not the one who defeat the others; it is the one who can control his anger" (Al Bukhary and Muslim)

The medical recommendation says:

Think carefully before you say anything.

The scientific miracles in the Prophetic teachings:
The Prophet (Peace Be Upon Him) knows the human nature, he knows how hard it could be to control anger; especially if the reason is about religion or honor or money; so he (Peace Be Upon Him) prescribed his miraculous cure to control the anger and it's motivations, that can result in disasters. Now after fourteen centuries, medicine comes to prove and confirm that all what the Prophet (Peace Be Upon Him) said had its positive reflections upon anger and its negative results.
The Prophet's acclamation for those who can control themselves
Abdullah Ibn Abbas (may Allah be pleased with them both) said that the Prophet (Peace Be Upon Him) said:
"when you have three traits, Allah will protect you, cover your secrets with His mercy and consider you of the beloveds". They asked: what are they, Prophet(Peace Be Upon Him) of Allah? He said: "thanking Allah for His gifts, forgiving while having the power to revenge and cooling down in anger"
(Al Hakem 1/214 with correct reference and Al Baihakie's Al sho'ab 4/154.

By:

Dr. Mohamed Abd Al Lateef Al A'groody