Has anyone had any experience or know of anyone who has had chaga tea/infusion while nursing? I have a 3 month old son, and my husband and I just foraged some and I want to get in on the benefits of the glorious fungus, too! None of either my instincts or material I have read about chaga have given me any indication it would not be safe, but it's better safe than sorry, as they say. Thanks!

If you're breastfeeding, don't. You can dry the fungus for later use.
Be certain that its the fungus!! Check !!
Otherwise dry and consume in little portions, just incase of allergies.

Although I don't have direct experience with wildcrafting Chaga, I do know that this species has several confusing lookalikes. I agree with Dirk- be careful about the ID and be sure to dry some material for future study. Here is a link to a pair of articles about Chaga lookalikes in Fungi magazine:

http://www.fungimag.com/archives/v5n3_fall_2012.htm

This magazine also has an entire issue devoted to Chaga that would be well worth checking out for anyone interested in the healing properties of the species.