Hair Regrow

It is true? If there is a way to regrow, what is it? - Especially the hair of the temple that has been depleted from wearing tight ponytails. Apart from issues like Rogaine (because I have heard that you should continue to use it b / c if you stop, your hair falls out again) A boy in my class had no alopecia, and he had no hair in about a year now, he no steroids to try to get my hair to grow back, he also gets a number of injections in the head (not sure what they are) trying to make hair grow back, he was really angry at school pictures on Tuesday he had to wear a hat. Alopecia is usually a permanent condition, and want to consult a doctor about treatments. Lazer Comb, hair vitimins, even hanging upside down, blood flowing in my head! Tips to treat alopecia areata http://geebal.blogspot.com/2007/12/alopecia-remedy.html