Cold? Just go walgreens, CVS etc to get some nedicine
For those new to US, Walgreens and CVS are everywhere. They are the equivalent to our Guardian and Watsons.
The difference is that they are more like a 7-11 as well. Selling drinks, snacks and even souvenirs!
Things I think those going to SF, LV and GC might consider. I suffered very bad dry nose. Saline nasal spray is recommended. I was squirting the stuff into my nose every half hour. One day it ran dry. Next morning, I got a nose bleed that leaked from my nose. Put tissue there and the tissue just got redder and redder. Awful!
Air is very dry especially if you are visiting the UT and AZ NPs. Desert air is dry even if it is a hot day. There is dry pain on your nose if you exert yourself too hard.
Painkiller. Get their housebrand ibuprofen. Just in case you get fever or something. I had swollen gums and the ibuprofen took care of it and the swelling went down. I got a 50 tablet bottle. Took 2X 200mg every 4-6hrs until the swelling subsided.
Finally, if you cannot take it and your nose is watering like crazy because instead of drying up like mine, your nose profusely became runny, get their cold medicine. My wife got a runny one so I got her the chlorphenamine+phenylephrine combo. House brand also. Cheap for 50 tablets at USD3.80