I used a head stocking under my wigs to prevent the inner part of the wig, which can be abrasive, from touching my scalp. After a few weeks you will hardly notice it. I would suggest at least 2. However, I had my favorite and wore it everyday. Let it sink is for a few days, and then have fun trying on all different kinds of wigs.
Longer hair is messier as it starts falling out.
Use the Internet or yellow pages to find shops that cater to alopecia or temporary hair loss due to chemotherapy. There are an abundance of wigs for sale online, as well. Shop around, there are big differences in price. There are charitable organizations that donate wigs. It may take a few weeks for your hair to start the growing process.