Ok, I found this when I went to post on it, and I have a suggestion for people in dry weather...
I live in Phoenix, and it doesn't get any drier than here. We also play 8 weekend a year outdoors all day! My hubby and I have gone through 5 bodhrans in a year...and we've tried just about everything.
Lansinoh. It is pure lanolin, nothing else. Yes, you have to work it into the drum for a good long while, and you want to do it on the inside of the drum, or when you wet it water will bead up on the top. Also, make sure you use it on the outside egde, where the tacks hold the skin down... that area tends to get overlooked, and takes the most strain.
Where do I find this stuff, you may ask? Baby care isle. You'll figure out why when you get there.