Flu is a common infectious viral illness spread by coughs and sneezes. It can be very unpleasant, but you'll usually begin to feel better within about a week.
You can catch flu – short for influenza – all year round, but it's especially common in winter, which is why it's also known as "seasonal flu".
It's not the same as the common cold. Flu is caused by a different group of viruses and the symptoms tend to start more suddenly, be more severe and last longer.

The flu virus is contained in the millions of tiny droplets that come out of the nose and mouth when someone who is infected coughs or sneezes.
These droplets typically spread about one meter. They hang suspended in the air for a while before landing on surfaces, where the virus can survive for up to 24 hours.
Anyone who breathes in the droplets can catch flu. You can also catch the virus by touching the surfaces that the droplets have landed on if you pick up the virus on your hands and then touch your nose or mouth.
Everyday items at home and in public places can easily become contaminated with the flu virus, including food, door handles, remote controls, handrails, telephone handsets and computer keyboards. Therefore, it's important to wash your hands frequently.
You can catch flu many times, because flu viruses change regularly and your body won't have natural resistance to the new versions.

• A high temperature (fever) of 38C (100.4F) or above
• Tiredness and weakness
• A headache
• General aches and pains
• A dry, chesty cough
Cold-like symptoms – such as a blocked or runny nose, sneezing, and a sore throat – can also be caused by flu, but they tend to be less severe than the other symptoms you have.
Flu can make you feel so exhausted and unwell that you have to stay in bed and rest until you feel better.

If you're otherwise fit and healthy, there's usually no need to see a doctor if you have flu-like symptoms.
The best remedy is to rest at home, keep warm and drink plenty of water to avoid dehydration. You can take anti pyretics to lower a high temperature and relieve aches if necessary.
take rest. For most people, this will take about a week.

please see your doctor if symptomspersisit , or if you are not responding to treatment at home , or if you have other medical conditions>

You can help stop yourself catching flu or spreading it to others with good hygiene measures.
Always wash your hands regularly with soap and warm water, as well as:
• Regularly cleaning surfaces such as your computer keyboard, telephone and door handles to get rid of germs
• Using tissues to cover your mouth and nose when you cough or sneeze
• Putting used tissues in a bin as soon as possible
You can also help stop the spread of flu by avoiding unnecessary contact with other people while you're infectious. you can wear a face mask to cover your mouth and nose .
In some people at risk of more serious flu, an annual flu vaccine or antiviral medication may be recommended to help reduce the risk of becoming infected.