I’m not aware of significant contraindications or drug interactions with Brigham tea (Ephedra viridids, E. nevadensis). I don’t know that it would have any antihistamine effects topically. It’s principally used internally. There isn’t a wait period between stopping a medication and starting Brigham tea.
Don't use herbs or combine herbs with medications or use them during lactation or pregnancy without talking with your healthcare provider.
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