Cells for medical or clinical use; Cells growth media for growing cells for medical or clinical use; Stem cells for medical or veterinary use; Stem cells for veterinary purposes; Cells for medical use; Living cells for medical use; Living cells for veterinary use; Exosomes being cells for medical purposes; Cells for exosome expression for medical or clinical use; Biological preparations comprising exosomes for the treatment of dermatological allergic diseases; Diagnostic reagent exosome cells...