Let him cry, do not approach
Such situation irritates and exhausts both the child, and parents see also section .
In the majority a case to recover from this habit very simply.
The child has to get used to that shout in the middle of the night he will achieve nothing.
Let him cry, do not approach him in general.
In the first night he can cry minutes though this time will seem to you eternity, in the next night he will cry minutes ten, and in the third, perhaps, at all will not wake up..