For a medical treatment of porn addiction, consult your physician. What follows are two of the proven effective and useful self-help tips to get rid of porn addiction.

Find out what is causing you this addiction:

Figuring out the reason of your being addicted to porn by identifying what the root of the problem is, first of all, the most important thing you can do. Don’t be afraid of bringing it out in the open with yourself. After when you know the root cause, you need to take the essential steps to eliminate the sexual longings from your mind. It will be easier said than done when you think you can stop at anytime on your own

free will, right?

Are there any negative or bad feelings you have towards something or about someone? Your sub-conscience will bring negative issues back out in your actions if they don't get resolved within your mind. It is only you who can know for certain what it is that has caused suffering and pain within you. And it is only you who can do something about it. So, make it right for yourself in your mind, and just do whatever that is needed to fix the problem.

Open Your Eyes:

Your philosophy of life should be with God and not with the world. Most of the porn addicts are found to have otherwise.  Some of the addicts have even been habituated into believing that viewing pornography is absolutely normal. You really need to break yourself free from this kind of insensible thinking, which leads to sin, and try to find the true foundation and source for your life.
I have come into the world as a light, so that no one who believes in me should stay in darkness. John 12:46