🔴 Acute dermatitis isn’t “just a rash”, it’s an inflamed skin barrier in crisis. If you know the mechanism, the management becomes obvious. 🧠 First principles: Skin barrier disruption → allergen / irritant penetration → immune activation → erythema, oedema, vesicles, oozing, intense itch This is inflammation, not infection. 📌 Classic acute features: 🔹 Red, swollen, itchy skin 🔹 Vesicles or weeping 🔹 Poorly demarcated (esp. eczema) 🔹 Sudden onset after exposure 🧪 Common triggers to spot i