saline nose drops
Thank you for your question.
I'm sorry your baby is not well. The symptoms you describe are very common in this age group for this time of year. You are doing many of the things available to comfort a three month old. The only thing I would add is saline nose drops, followed 2 to 3 minutes later by gentle bulb suction of the nose. This can often extract mucus from the nose and make the baby more comfortable.
However, if the symptoms persist for another 2 to 3 days, or the baby develops fever
, or there is a noticeable change in appetite, I recommend consulting with your doctor.