Physically and chemically stable, oxidation-resistant, cosmetic/dermatological inverse emulsions contain a therapeutically effective amount of at least one avermectin compound, notably ivermectin, a glycolic or aqueous/glycolic dispersed hydrophilic phase, a continuous lipophilic phase and an emulsifier having an HLB ranging from 2 and 7, and are useful for the treatment of a variety of dermatological conditions/afflictions, e.g., rosacea.