Advil is a brand name for ibuprofen, which is a nonsteroidal anti-inflammatory drug (NSAID) used to treat pain and inflammation. According to the National Health Service (NHS) [2], Advil should be taken with or after food or a drink of milk to reduce the risk of stomach irritation. Therefore, it is safe to take Advil with milk, and it may even be beneficial for reducing stomach irritation.

However, it is important to note that ibuprofen can pass into breast milk, according to Mayo Clinic [3]. Therefore, breastfeeding mothers should consult with their healthcare provider before taking Advil or any other medication.

In conclusion, taking Advil with milk is safe and may even reduce the risk of stomach irritation. However, it is important to consult with a healthcare provider before taking Advil or any other medication while breastfeeding.

Sources:
[2] https://www.nhs.uk/medicines/ibuprofen-for-adults/how-and-when-to-take-ibuprofen/
[3] https://www.mayoclinic.org/healthy-lifestyle/infant-and-toddler-health/in-depth/breastfeeding-and-medications/art-20043975