Officinalis DER SprayPart Number: ERS-468382NONE 500M | Questions about this item? Be the first to ask here.
D.E.R stands for Recurrent Summer Dermatitis (Dermatite Estiva Recidivante)- commonly known as Sweet Itch. Bites from blood-sucking insects, especially the female Culicoides (small midge) cause skin lesions and severe itching. DER Spray An effective ins