How to clean the camera when it fogs?

The cleaning method of camera fogging is as follows:

Send it to the maintenance point for cleaning; Cleaning with special clean fuel and cleaning articles; When the camera fogs outside, use your hand or paper to fan the fog. The fog inside the camera has to wait for the camera to recover. When you use it next time, take it to a cold place in a warm place and wait a little while before opening the camera bag and taking out the camera. Put it in a drying oven for a few days, or put it in a plastic bag with a camera for a few days with a silicone desiccant, and some water mist will be removed.