Can I take Tylenol Sinus Night while using Nasonex and Flexeril at bedtime for what seems to be a sinus infection?

Based on the information provided, it is not recommended to take Tylenol Sinus Night due to potential interactions with other medications you are taking. However, you can try sleeping in a semi-upright position if possible, use acetaminophen for headaches or fever, try saline solutions for sinus congestion, continue using Nasonex as prescribed if it helps with allergies, rest as much as possible, and consider using a topical decongestant if needed. If symptoms worsen or persist, it is advisable to consult a doctor.