Oregano is especially used in the Mediterranean cuisine. It is added to almost all spice mixtures; therefore, you should pay attention to the list of ingredients.
Possible cross reaction: Oregano has common allergenic structures with the pollen of mugwort, in the protein profilin. If one reacts allergic to or is sensitised to pollen of mugwort, allergic reactions are possible if one consumes oregano. You can find alternatives to oregano as well as other spices when extending ImuPro Basic to ImuPro Complete.