What should you do if you find yourself thinking about zina (fornication/adultery)?

Praise be to Allaah. 

Thinking
about zinaa may mean one of two things.

(1)       
It may be merely thoughts that
cross the mind, without becoming a firm resolve. A person cannot be
blamed for this, but it is better to rid oneself of these thoughts so
that they do not lead to anything else.

(2)       
It may be an established thought
accompanied by resolve and intention. In this case, the person must
hasten to deal with it in a number of ways, including the following:

1-    
Seriously thinking of getting married,
because this is the shar’i (legal Islamic) and natural protection for the Muslim man
and woman.

2-    
Fasting if one cannot get married.

3-    
Muslim men and women should strive to strengthen their eemaan (faith) by reading Qur’aan, praying naafil (voluntary) prayers and doing other kinds of acts of worship.

4-    
Taking care to choose righteous
friends.

5-    
Keeping away from everything that
might provoke desire; one of the most obvious of these is looking at
things which are haram (impermissible).

6-    
Remembering the punishment for
zinaa in this world and in the Hereafter, and that its evil affects
far outweigh the immediate pleasure that a person may experience.