Context Quora

I am going to spend two weeks in Cuba soon, but my lungs don't tolerate smoke (and I might be allergic to it). My common symptoms after one hour of exposure to secondhand smoke inhalation have been tight respiratory passages and dry throat lasting about a day. Besides the proactive lifestyle steps I can take of wearing a mask or avoiding certain places, what kinds of medicines (inhalers or throat sprays) can be used (and pass through Customs at the airport) that could help me control these symptoms?