Advil is a brand name for ibuprofen, which is a nonsteroidal anti-inflammatory drug (NSAID) that can help reduce fever and relieve pain [1]. According to the Mayo Clinic, fever is a natural response to an infection or illness and can be treated with over-the-counter medications such as acetaminophen (Tylenol) and ibuprofen (Advil) [3]. However, it is important to note that combining medications can have adverse effects and should be done with caution.

The New York Times reports that taking both acetaminophen and ibuprofen together can be effective in reducing fever and pain [2]. However, it is recommended to avoid taking multiple medications with the same active ingredient, as this can lead to overdosing and potential liver damage [2].

It is important to follow the recommended dosages and instructions on the label of any medication, and to consult with a healthcare professional before combining medications [2]. Additionally, it is important to monitor symptoms and seek medical attention if a fever persists or worsens [3].

In conclusion, Advil (ibuprofen) can be used to reduce fever, but it is important to use caution when combining medications and to follow recommended dosages and instructions. It is always best to consult with a healthcare professional before combining medications or if symptoms persist or worsen [1][2][3].

Sources:
[1] https://www.drugpatentwatch.com/p/tradename/ADVIL
[2] https://www.nytimes.com/2018/05/11/well/live/fever-infection-drugs-tylenol-acetaminophen-ibuprofen-advil-aspirin.html
[3] https://www.mayoclinic.org/diseases-conditions/fever/in-depth/fever/art-20050997