A viral infection that affects the respiratory system is called influenza. Influenza or flu may affect one’s lungs, throat and nose. The virus that cause diarrhoea and vomiting is the main cause for this disease. To prevent this disease, it is important to receive an annual vaccination.

What are the symptoms of influenza?

During the primary stages, there can be a common cold along with a runny nose, sore throat and sneezing. As the condition progresses, cold also develops slowly. But, the flu develop suddenly. The common signs and symptoms of influenza may include:

  • Headache

  • Dry cough

  • Nasal congestion

  • Fever over 100 F

  • Fatigue

  • Weakness

What are the causes of influenza?

Viruses are the main cause for influenza. However, influenza is contagious and spreads through the air.

What are the treatments and drugs for influenza?

Influenza or flu usually do not require much complicated treatments. Home care and rest may be enough in most cases. Drinking plenty of water can even be helpful to improve the condition. Taking antiviral medications during the primary stages itself will help to improve the condition faster. Pain relievers can also be used to reduce the symptoms caused by the disease.