Last 2 ski holidays one of my kids who is ginger has had very sore lips and then the year after got sore/sun burnt above lips. Uses factor 50+ lotion and factor 50 lip stick, both reapplied diligently. These are just normal kids branded products from supermarket that are fine for summer holidays but not specifically for skiing. Is there something else we should be using/doing? It was hot when we skied so not sure a balaclava type covering would be comfortable. Thanks