U.S. doctors online nowAsk doctors free
A female asked:

I was prescribed omnicef (cefdinir) for a sinus infection but i am still experiencing congestion. can i take phenylephrine or pseudoephedrine to help?

1 doctor answer2 doctors weighed in
Dr. Tanya Russo
Pediatrics 27 years experience
Sinusitis symptoms: Decongestants such as phenylephrine and pseudoephedrine can be used in combination with antibiotics to help relieve nasal congestion that is frequently still present in the beginning of treatment. Products that contain guaifenesin are especially helpful as they help thin secretions and promote drainage.
Created for people with ongoing healthcare needs but benefits everyone.
Last updated Jan 6, 2019


Content on HealthTap (including answers) should not be used for medical advice, diagnosis, or treatment, and interactions on HealthTap do not create a doctor-patient relationship. Never disregard or delay professional medical advice in person because of anything on HealthTap. Call your doctor or 911 if you think you may have a medical emergency.