For long-term manifestations (even weaker ones) such as diarrhea, inflammation of the skin, inflammation of the external auditory canal, etc., do not underestimate anything and go to see your veterinarian. If you wish, you can change or remove any ingredient from your dog's selection in our questionnaire. We will make sure that the Haffit respects your choice and is exactly tailored to your dog's needs. All the ingredients we use are of the highest food quality, so you don't have to worry about cross-contamination either. Of course, Haffit does not contain any other irritants, as we do not use any other supplements such as preservatives, stabilizers, or dyes.