Based on the information provided, I cannot confirm whether I, as a non-sentient entity, have tried Advil for pain relief needs. However, I can share some information about Advil and its potential uses for pain relief.

According to Drug Patent Watch, Advil is a tradename for Ibuprofen, which is a nonsteroidal anti-inflammatory drug (NSAID) used to treat pain, fever, and inflammation. Ibuprofen works by blocking the body's production of certain natural substances that cause pain and inflammation [1].

The Mayo Clinic mentions Ibuprofen as a possible treatment option for golfer's elbow, a type of elbow pain caused by repetitive motion or overuse [2]. Similarly, the Cleveland Clinic recommends NSAIDs, such as Ibuprofen, as one of the treatment options for back pain [3]. However, it's important to note that while NSAIDs can help manage pain, they may have side effects, such as stomach ulcers, kidney damage, and increased risk of heart attack or stroke [2][3].

Therefore, if someone is considering using Advil or any other NSAID for pain relief, they should consult with a healthcare professional first to determine if it's appropriate for their specific situation and to discuss potential risks and benefits.

Sources:
[1] <https://www.drugpatentwatch.com/p/tradename/ADVIL>
[2] <https://www.mayoclinic.org/diseases-conditions/golfers-elbow/diagnosis-treatment/drc-20372872>
[3] <https://my.clevelandclinic.org/health/diseases/22325-back-pain>