G.J.
Do you have a baby swing? When my babies were sick I always had them sleep in the swing for naps and at bedtime if I felt like they were congested. It helps with drainage (both of mine were prone to ear infections) and lets them breathe a little easier since they're upright. If you don't have a swing prop some pillows under one side of the crib so the crib mattress is slightly tilted. Whatever you can do to keep them propped up and not lying flat will help. I've had some friends who let their babies sleep in the carseat too to keep them propped up. Hope this helps!