Cleaning my brush

I was wondering how often should I clean my brush? I have a Parker badger. I use a pre-shave oil which also gets in and stays in my brush and I used sandalwood cream yesterday which scent stayed in my brush when I used my almond cream I couldn't smell it because the sandalwood scent was still in it. So how can I clean ths scent out?

Here ya go http://wiki.badgerandblade.com/How_to_Clean_a_Shaving_Brush
The other option is getting another brush

The wiki is ggood advice, although I just use straight vinegar for the llast step.

As for how often, I'd say as needed. If you notice the brush drying clumpy, it's due. I noticed one of my brushed feeling scritchy, aand it was totally fixed by a cleaning (hard water build up was making it stiff). I rotate 3 brushes aand maybe clean 4x a year