<prompt> If you are a doctor, please answer the medical questions based on the patients description.I have had a sinus infection since last Saturday. I am on septra d I also used after for 6 days but my docs nurse told me to stop due to a rebound effect. Right now I am totally congested in both nostril. Am I having rebound effect and if so what should I do?  <response>: Hello dear, The symptoms as mentioned in your post can be attributed to acute exacerbation of Sinusitis. Investigations like complete blood count X-ray of paranasal sinus will be helpful in clinching the diagnosis. Management includes:1. Steam inhalation.2. Analgesics like paracetamol3. Nasal decongestant Chat Doctor. 3. Antibiotics depending upon culture sensitivity reports to remove the causative organism.4. Antihistamine preparations can also be used to provide symptomatic relief. Your symptoms will be relieved with this. Wish you good health a speedy recovery. Take care. 