"Is it common for a 22-month-old child to have a cold?"

If your 22-month-old child has a cold but doesn't complain of pain during the day or night, and doesn't have a fever, it's generally recommended to wait for about 5 days before consulting a doctor. If the ear pain persists beyond that time, it's a good idea to see a healthcare professional, as they can examine the ear for any issues and provide appropriate treatment. It's also important to properly administer any pain relief medication and saline solution for sinus irrigation to ease discomfort and congestion. If you have any further questions or concerns, don't hesitate to seek medical advice.