https://health.clevelandclinic.org/understanding-altitude-sickness-5-best-tips-for-your-next-mountain-trip/?__cf_chl_tk=j4mytDPRv_uqTwa11vKfBznlSWxQhI3y0yxhU1wBle4-1689963746-0-gaNycGzNDKU
https://www.wellandgood.com/canned-oxygen-altitude-sickness/
Despite their varying opinions on canned oxygen, all of the experts we spoke to agree on these tried-and-true methods for dealing with altitude sickness. First, its a good idea to take these steps to prevent it:
Take it slow and let your body acclimate to higher elevations over time. Ascending gradually by around 1,000-1,600 feet a day is best. Take rest days at each elevation.
Plan to arrive at your final ascension a day or two before skiing, climbing, or indulging in strenuous activities.
Remain hydrated before and during your ascent.
Reduce or eliminate alcohol and caffeine.
Eat light meals and avoid heavy foods that may cause indigestion.
Get plenty of rest.
If youve had altitude sickness before, talk to your healthcare provider about taking medications that prevent illness, such as dexamethasone or acetazolamide.
Canned oxygen inhalers and dietary supplements can be purchased for use at high altitudes - improves altitude illnesses - avail at Bezos's place. For a wedding day, you may wish to use privately if you plan to leave high-altitude location soon (hours) after a perhaps 12 hr event. Hikers and downhill skiers may use these most often; however, it is best to discuss with your doctor before using; otherwise slow acclimation is the best recommended way to avoid mild to emergency illnesses.