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Dr. Abby
Dr. Abby, Board Certified MD
Category: Health
Satisfied Customers: 10330
Experience:  Family Physician, practicing medicine for over 10 years, United States
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Why do I have a headache and chest congestion with a fever of 99.3?

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I have a chest congestion and headache with a fever of 99.3 but no sore throat. I have been taking Mucinex DM which has helped with the cough.

However due to the slight fever, could it be a bacterial infection or sinus that needs antibiotics?

Most likely this is a viral respiratory illness. Both bacteria and viruses can cause a fever. If you are coughing up phlegm, you may have bronchitis which is usually viral.

Pneumonia can also cause a cough with phlegm, a fever of at least 100.3, shortness of breath and possibly some pain in the chest as well.

For now, I would treat your symptoms with what you are doing.

I recommend seeing your doctor if you develop:
1. A fever of 100.3 or higher

2. Pain in the chest

3. Shortness of breath

4. Symptoms that persist beyond 7-10 days

I hope that you feel better. Please feel free to ask any follow up questions.

Dr. Abby and 3 other Health Specialists are ready to help you