Hello, first of all, I want to say that it is not a good idea to get this disease with a girl of 18 years old. It is better to shave your head than to sympathize with chemotherapy. It's best not to cut your hair short. You might as well wear a hat and wig. If you want it to grow fast, shave your head with a small electric hair clipper every two days. This is the same as shaving. It has also been suggested that rubbing Jiang Ye with ginger before going to bed can promote hair growth. What's more, eat more walnuts, black rice, Polygonum multiflorum, glutinous rice, sesame seeds and peanuts. These things will be kept for about half a year, almost to the neck. Having said that, the most important thing is to wish you a speedy recovery and long hair.