Why are my sinuses worse outside of LA?

It could be allergens that your body is not acustom to in the areas you are traveling. For example: Certain tree pollens that may be in the areas you travel that are not in LA.

Gooch has a point. Why do the Indians who drink from the Ganges and eat all the raw produce not get dysentery or even gippy tummy? Acclimatization. When I had a camp on Lake Placid, we drank the untreated water pumped in from the lake at about 40 feet deep.. We were fine but some of our house guests had GI problems. The Finkels all seem to have been fine, if I remember correctly, but others suffered.

mutant