I haven't had a chance to welcome you to the forum so, to the forum lol!
I did a search and found the Puritan website and it looks to me like what they sell isn't organic which most likely means it's toxic. I can't say for sure that is why you have broken out but it very well could be the cause.
We get our Echinacea in tincture form from Uny or we make our own. Uny and probably everyone on the forum who makes their own use only organically grown Echinacea Angustifoila root and Echinacea Purpurea root tinctured in 100 proof vodka. The Echinacea tincture is filled with immune system building goodness, well lots of other goodnesses too! My husband and I take several droppersful every day.
Here is a post Uny made telling how she tinctures her Echinacea tincture, there are also lots of links with great info about the benefits of Echinacea. It's an herb my husband and I will take daily for the rest of our lives, I wouldn't be caught without it! EVER!!!! ;)