Hair loss

I have leukemia and I've been loosing my hair. It's slowed in the last month maybe half a month. But I have terrible spottage and my hair is no longer thick. I'm in my 3rd month of treatment. * out of 2 and a half years * I'm hoping maybe by the time school starts next August I could help some of the spotting. The first 6 months should be up sometime in July which is when it'll be mostly oral chemo and no IV. Do you girls know of ANYTHING that'll help with hair growth/ regrowth fast ? Preferably ones that don't cost an arm and a leg. But if they do thats fine too! Thank you for any suggestions you could possibly think of! * also wasn't sure which group to post in *