Yes, it is important to persist with the treatment, but you may need to adjust your methods to reduce the irritation. Try using a smaller amount of the product, applying it only at night before bed, and washing your face with water in the morning before going out in the cold or sun. In the morning, after washing your face, use a moisturizer designed for acne-prone skin to keep your face well-hydrated. This can make a big difference in controlling irritation.