Is it possible to have a sinus infection without nasal congestion or runny nose?

Yes. A sinus infection occurs when bacteria (most commonly) grow and create pain/pressure in one of the sinuses. Many times, one of the ostia, the openings from the sinus into the nasal passages get plugged up for various reasons without typical sinsus symptoms. Recently had a patient with severe sinusitis whose only symptom was a bad cough. Otherwise felt fine.
Yes. Often the only symptoms are sinus pain and pressure esp. With bending over without any concomitant nasal congestion. Should see an ENT for a formal evaluation if symptoms are lasting more than a moth.

Related Questions

Can a sinus infection cause nose bleed? How come my symptoms such as hoarseness, sore throat, runny nose, and nasal congestion only getting worse?

Sinuses & Epistaxis. The inflammation caused by sinus infection, along with the pure violence of constantly blowing your nose, can lead to nosebleeds in the context of a sinus infection That being said, sinus infections tend to be bacterial, so you may be getting worse because you need an antibiotic. Read more...

Is it a sinus infection when there is a slight foggy feeling behind eyes and off and on nasal congestion for several months?

Sinus Problems. Possibly. Clogged or infected sinuses may cause pressure and discomfort behind the eyes because several of the paranasal sinuses surround the orbit. If your symptoms have been going on for months, please call your primary care doctor. You might need an x-ray to evaluate the sinuses. Read more...
Likely inflammation. It is more likely that you have sinus inflammation rather than infection for the long. Allergies are usually the most common cause of this chronic inflammation of the sinuses. An evaluation by an ENT who specializes in nose/sinus disorders would be warranted. For more info go to www.Socalsinus.Com. Read more...

I am experiencing nasal congestion and sore throat. It's probably allergies but my concern is I'm very susceptible to sinus infection. What meds?

Start with OTC. start with over the counter allergy meds taken on a daily basis such as Zyrtec or Allegra. for congestion pick up some Sudafed. by taking a daily allergy medication when starting to notice stuffiness and symptoms, you will avoid the most severe symptoms and your sinuses will stay open. once your sinuses become congested you have static mucus that is susceptible to infection by environment bacteria. Read more...

I'm have symptoms of cold and sinus infection (sore throat, runny nose, congestion) and it also seems I've developed a toothache. Are these related?

Yes and no. The symptoms you've described would not be related to a toothache. However, if you have sinus infection involving the maxillary sinus (situated above the upper molars( it can cause tooth pain. See your dentist to assess the tooth pain. Read more...
Sinus "toothache" A sinus toothache is the result of a sinus pressure from the maxillary teeth. Very common. Read more...

I have severe congestion, sneezing, runny nose, awful dry sometimes yellow mucus cough, my mucus from my nose is clear. I took allegra, did not help at all. I cant decide if its allergies or a sinus infection/cold. Its been 3 days. Should I take mucinex c

Allergies. Seasonal allergies can present with symptoms of congestion, sneezing, runny nose, itchy eyes. Spring time in the north east can be problematic for seasonal allergy sufferers. Upper respiratory infections (the common cold) and sinus infections present differently, usually involve a fever and a general feeling of unwell versus seasonal allergies which cause congestion in otherwise well patients. Read more...
Infection? Try a different antihistamine, like Benadryl (diphenhydramine). If 25-50 mg of Benadryl (diphenhydramine) makes no difference, then it is not likely that your symptoms are due to allergies. There is no good evidence that mucinex is much help and it is expensive and has its own side effects, and I never recommend it. Avoid fragrances and aerosols while sick (add to irritation of respiratory tract). See MD if no better in 2-3 days. Read more...

Have facial pressure on left side of nose and in my head round by my eye, nasal congestion and post nasal drip. It is not a sinus infection. Any ideas?

Blocked sinus. This can be an inflammation in the nose or low grade nasal infection causing blo9ckage of the sinus openings. See an ENT doctor. Read more...
Likely a sinus issue. These symptoms do sound like a sinus inflammation. The fact that it's unilateral deserves an evaluation by an ent. Allergies or a sinus infection are possibilities, although both of these would usually give bilateral symptoms. May have a polyp etc on one side. I would take over the counter Claritin (loratadine) daily and go see an ENT specialist if it does not resolve after 3 to 5 days. Read more...