Has anybody overcome an allergic reaction to Yerba mate?

Bought Yerba mate for the first time, got a stainless mate gourd, a thermos, the bombilla; everything. I was ready for Yerba mate to help me with my high cholesterol, my migraines, to boost my energy and focus etc. turns out I had a dermatitis reaction all over my face and have Itchy chest and arms. The tiny bumps look horrible on my face. My whole face is tingling.

Now I did overdo it and had about a liter of Yerba.

Do you guys think if I have small sips at first I will develop tolerance for it? I hate having to give away everything. I know it could help me so much in other areas too :(

Am I a one in a million case?