Based on the symptoms described, it sounds like your baby may have a fungal infection called Candida Albicans. This type of infection often presents with redness and small bumps around the mouth. The recommended treatment is applying a cream containing clotrimazole 1% twice a day for 10 to 14 days. You can also help by gently wiping your baby's mouth with a dry cloth to reduce moisture. This type of issue is common during winter when the dry air can dry out the skin and mucous membranes, leading to increased risk of fungal infections. If you have any further questions, feel free to ask for more information.