1. Hair dryers are best used sparingly, and natural drying is the best way to protect hair. If you must use a hair dryer, don't blow it at the root of your hair, just blow it at the middle and end of your hair. Blowing against the roots of hair dries easily.

2. If it is high temperature, it will damage the hair. Don't blow it too dry, so it won't hurt your hair!

3. Frequently blowing hair with a hair dryer will lead to dry and dull hair, and the hair dryer will also radiate. Generally, let the hair dry naturally, unless there is an emergency and you need to use the hair dryer again. I hope it helps you.