Tiger Balm?

TXTwisterBabe

I'm about to run next door to call my dr and ask about these patches, but I wanted to write here and see if any of you have already had this question answered before.

My MIL gave me these "Tiger Balm" patches for back pain and I was wondering if anyone else has used them while pg or know if they are okay to use?  There is no warning for pregnancy on the back of the package or anything.  I was going to give them a try for my sciatic pain.  

I'm being lazy, we don't have a house phone yet and my cell phone gets zero signal so I have to walk over to my gparent's house to use their land line phone to call my dr...and I don't feel like walking over there just yet lol.  TIA ladies!