If you are experiencing redness, pain, and swelling in your breast while breastfeeding, it may be a sign of mastitis. It is important to increase the frequency of feedings, drink plenty of water, and apply warm compresses to help with the discomfort. If the symptoms persist or if you develop a fever that lasts more than 24 hours, it is advisable to consult a healthcare professional. Remember to take care of yourself and seek medical attention if needed.