Is my daughter's ear swollen and red?

It is important to remove the piercing to allow the skin to heal properly. Once the area has fully healed, you can consider putting the piercing back in. Make sure to clean the earring thoroughly and sterilize it by boiling it in water for 5 minutes. Basic hygiene with mild soap and water twice a day should be sufficient for ear care. Avoid using hydrogen peroxide or alcohol as they can dry out the skin and slow down healing. If the situation does not improve after 7 days, it is recommended to seek medical advice.