There are several things you can do to prevent a cold—they are all easy and inexpensive and worth the effort.
Wash your hands often-with soap and warm water.The germs stick to the soap and get washed down the drain. Always wash your hands after coughing or sneezing into your hands, blowing your nose, after touching someone who is sick, or when using public restrooms or telephones.
Cover Your Mouth and Nose When You Sneeze or Cough- Clean your hands every time you cough or sneeze.
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Obstruction on one nasal cavity is normal. It's called as nasal cycle. The discharge is mucous. If it's discharging take tab. Cefoprox 200mg twice daily and tab. Solvin cold once daily for 5 days.

Hello, take betadine gargles 2-3 times per day and tab. Solvin cold twice daily for 3 days. Let me know if no improvement. And if breathlessness, fever etc then visit doctor and get examined immediately and keep follow up.

Dear,
It seems you have Viral upper respiratory tract infection. plz take Tab Solvin cold for fever. Avoid other analgesics. Take rest, take plenty of fluid. Get some investigation like CBC with kit test for malaria, RFT, LFT done.
Start antibiotic like Zifi 200 twice daily and Azee 500 once daily to avoid superadded bacterial infection.
If you belong to Delhi, Gujarat, Rajasthan or Madhya pradesh then you are swine flu suspect category B. so get investigated for the same too.
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U can use nasivion moist nasal spray 2 puff three times a day, and also take chewing gum contionously for 2 to 3 hours will decrease the symptoms, thia is because pressure in the tube of connection between ear and mouth.

Get your cbc done to rule out any infection & take tab solvin cold twice daily, revert with reports.

Swelling of vocal cords causes voice change and even difficulty in breathing some times.So probably your mother have tonsillar swelling instead of vocal cord.

If no improvement you should get complete blood tests and X-Ray chest done. Based on this treatment can be decided or if required further investigations done.

Nasal congetion? Endoscopy of nose, CT scan PNS, etc will help to come to diagnosis. Avoiding allergens, will help you. You may require Antihistaminics and nasal decongestants. You may require surgery….

Most likely viral infection. Take tab. Solvin cold and betadine gargle for sore throat. If doesn't get relief in next 2 days and fever spike again, revert back, I will prescribe antibiotic later.