A habit can be broken sooner than it can be formed, but even then it cannot be broken immediately.

First recognize that your uncomfortable feelings whether of eyes, nose, stomach, back of neck, top of head, or whatever it may be, are mere habits, and then go about gradually but steadily ignoring them.

When once you find that your own healthy self can assert itself and realize that you are stronger than your habits, these habits of illness will weaken and finally disappear altogether.
The moment an illness gets hold of one, the illness has the floor, so to speak, and the temptation is to consider it the master of the situation--and yielding to this temptation is the most effectual way of beginning to establish the habits which the illness has started, and makes it more difficult to know when one is well.

On the other hand it is clearly possible to yield completely to an illness and let Nature take its course, and at the same time to take a mental attitude of wholesomeness toward it which will deprive the illness of much of its power.

Nature always tends toward health; so we have the working of natural law entirely on our side.