Differences Between Milia and Milium

May 28, 2022 Source: Cainiu Health
Disease description:

Several small red papules have appeared on the hands and arms, approximately the size of a needle tip. They are suspected to be miliaria. Please explain the difference between miliaria and milia.

Doctor's answer (1)
Dr. Wang Xiaoyan
Miliaria (prickly heat) is a skin inflammation caused by prolonged exposure to hot, humid environments, leading to impaired sweating. Milia are small epidermal retention cysts associated with genetic factors or post-inflammatory damage to the sweat ducts. After treatment, topical antibacterial and anti-inflammatory ointments—such as fusidic acid cream or erythromycin ointment—may be applied locally. During this period, patients should avoid contact with water and take sun protection measures to prevent infection or post-inflammatory hyperpigmentation.