Embodiments of the invention relate to a method for the treatment of mIAS or prevention of symptoms associated with mIAS in a patient in need thereof comprising administering to a patient in need thereof an amount of a composition comprising extracts of the plant species Sambucus nigra, Echinacea purpurea, and Centella asiatica. Optionally the ratio of Sambucus nigra, Echinacea purpurea and Centella asiatica is about 7:1:2. Further embodiments relate to use of extracts of the plant species Sambucus nigra, Echinacea purpurea, and Centella asiatica for the manufacture of a medicament for the treatment of mIAS or prevention of symptoms associated with mIAS in a patient in need thereof.