For this situation, it is recommended that you: consult a psychiatrist.
On a regular basis, pay attention to open-minded vision, open-minded atmosphere some.
Appropriately more - outdoor activities, sports, productive labor.
More contact with some people and things, including trying to touch more - not very clean items.
For example, if you are in sports, touching the dust of some spheres, and so on. Enhance your ability to adapt, your mental capacity.
Also, learn to take a long-term view. Look at the problem with the vision of change.
In the world, there is nothing that is set in stone.
Clean things can get dirty after a while. There is no need to make a fuss about it.
And the dirtier things. It also gets clean after you clean it. No need to worry too much about it.
Obsessive-compulsive words. Refer appropriately. Cognitive therapy. Behavioral therapy. Morita therapy. Four-step therapy. And other therapies.
Behavioral therapy, including systematic desensitization. You can try something dirty first, that doesn't make you too nervous.
Then expose yourself to something, which makes you more nervous. Gradually, you can improve your tolerance.