You can try threading - it's an Indian technique used for eyebrow shaping, but I believe you can get it done on sideburns (and even upper lip, forehead and um... a few other places I think). If you're located in the Bay Area, there's this really good lady called Deepa who does threading. If you're not in the Bay Area, I guess you can always do a Yelp search...that's how I found out about Deepa.
you can use pretty much very type of hair removal that exists... shave, wax, laser, thread, and so forth.
I know shaving sounds weird for a woman, but when I started laser hair removal I had to shave my face, and my skin has NEVER been better, it was much less harsh on my face than any other type of hair removal.
Hi! I actually thread mine. Everybody's hair grows back at a different rate. Mine grows back in like 2 weeks. The threading is a little painful sometimes but it wasn't as bad as I thought it would be. It honestly just feels like they're rolling the thread over your skin.
I thread my eyebrows and it usually lasts for about 3 - 4 weeks although the lady told me to come back every 2 weeks. Maybe it's because I wait until my eyebrows get too bushy before I go and get it threaded again It's really fast though! Only about 10 minutes or so