@irontoenail - It's good to remind people of that, as we apply so many different kinds of cleansers and moisturizers to our skin that it's easy to forget that a pain cream is actually medicine and that medicine is getting absorbed into the bloodstream.
For a long time I actually didn't like using this kind of product for just that reason, because I didn't like the idea of putting random medication into my body, just to get rid of a little pain.
But a doctor told me that that wasn't the whole picture. Pain can really make it difficult to heal sometimes. If you have sore muscles, you'll be tensing those muscles with the pain and with that extra strain they'll take longer to heal.
If all you're doing is using an anti-inflammatory, pain relief cream it won't stay in your system and probably won't effect you all that much except to give you some relief. A healthy liver can take care of the chemicals with no problems whatsoever.
She convinced me it's better to just accept that my body doesn't need to be kept completely pure and that sometimes it needs a little bit of help.