Dr. Farzan on Instagram: "Pustules may form when your skin becomes inflamed as a result of an allergic reaction to food, environmental allergens, or poisonous insect bites. Apply an over-the-counter treatment like calamine lotion, cortisone cream. Stay away from products that can irritate your skin, like cosmetics or sunscreens. Don’t touch, pick at, or pop pustules. #pustules #allergicreaction #contactdermatitis"