Avian flu (H5N1) is a particularly dangerous strain of the influenza virus. While it has not yet adapted to spread easily among human populations (like Swine Flu has), and still mostly appears among people who regularly handle birds, it can pose a significant health risk. If you suspect that you may have Avian flu (very unlikely unless you live in Asia), you should see a doctor at once.

Symptomatic Treatment

Because avian flu is caused by a virus, there are no drugs that can directly attack the disease-causing agent. Instead, most treatments rely on combating the symptoms and keeping the body functioning until it can fight off the infection itself. These treatments are, thus, very similar to those used to treat a regular flu infection, but, because of the danger Avian flu poses, they are that much more important. Unfortunately, a vaccine, the best way to combat the spread of a flu strain, has not been developed for Avian flu, and is unlikely to be developed before the disease begins to spread rapidly. The most important things to do are to get plenty of rest, drink a lot of fluids, and avoid alcohol and tobacco. People suffering from the flu tend to lose their appetite, and as a result some become malnourished, increasing their risk of death. Keeping this in mind, it is necessary that someone with Avian flu is properly fed and keeps up a healthy intake of nutrients. Also, it is best to avoid interaction with others and to wear a mask whenever you go outside to avoid infecting others. Likewise, wash your hands regularly and instruct everyone in your household to do the same. In addition, many over-the-counter medications can help. Standard painkillers like Tylenol should be used to combat fevers and aches, and decongestants like Sudafed can be used to reduce sinus pressure and swelling. In addition, statins, drugs that are normally taken to reduce cholesterol, may reduce lung swelling and improve a patient's condition.

Anti-viral Drugs

Doctors also have access to anti-viral drugs that prevent the disease by interfering with the Avian flu virus's reproductive cycle. The most common of these drugs is Tamiflu, and the World Health Organization has started to stockpile this drug in case of an Avian flu pandemic. On the other hand, there are some doubts about the true ability of Tamiflu to treat Avian flu infections (doubts voiced by World Health Organization expert Hassan al-Bushra in a Reuters interview). Other similar drugs, like Relenza, have shown more definite promise ("Delayed antiviral plus immunomodulator treatment still reduces mortality in mice infected by high inoculum of influenza A/H5N1 virus" Bo-Jian Zheng, etc., Proceedings of the National Academy of Sciences of the United States of America, 2007).

Source:

An article on the use of statins against Avian flu.

A detailed article on treating all types of influenza.

A study showing the effectiveness of some anti-viral drugs.

a rapid heartbeat causes a fever, not the immune system. try checking a patients pulse who has a fever. if it is a low fever they will have a dangerously abnormal high heartrate without excersize, if it is a dangerously high fever it will become slower than normal and erratic. this is due to virus increasing in size wich the body registers as an increase of blood making the heart pump harder. viral deaths are caused by rapid increases and decreases in the blood supply, either by viral growth or by evaporation of the blood supply due to its high water content, blood evaporates at fever temperatures just like water. make sure you do not let a person sleep during fever as you will not be able to monitor wether they are sleeping or unconsciouss if fever is severe they will pass out and monitor thier alterness level and watch for slurred speech and fainting as warning signs. I would recommending at drawing blood if heartrate is fast and fever is not yet high along with drinking and eating food until heartrate is normalized as its a response to the increase of virus/blood supply. do not do draw blood if heartrate is slow or fever is above 103 degrees as unsconscioness and bleeding may occur.a mild muscle relaxant may be used to slow the heartrate wich is why alcohol in cold medicines work (dont drink during a fever because your heartrate levels are unsteady and drinking can dangerously lower your pulse (why people passout drinking alcohol). you can also prove this by giving an unessary blood transfusion to an animal, it will produce fever symptoms and possible heart failure if enough blood is given. sweat needs to be seen as a danger sign of dehydration, your body is loosing blood in the form of water(sweat) wich also would cause lowered heartrate from fever temperatures.