Also not to hot on 2-4. #2 will only help if yoou sleep up there as well. Just hiking it will not help if you are staying dwon below. Besides #1 and 2, None of that will prevent AMS: it can only not make it worse.
#3 has been what has helped me. I get AMS symptoms starting somewhere around 9500' to 10K'. But I take ibuprofen (which is what is in Advil and Motrin), and not aspirin. Aspirin and ibuprofen (and naproxen, aka Aleve) are NSAIDs so should work in a similar fashion. Acetaminophen (Tylenol) is NOT an NSAID.
