Allergies where common 30 years ago, but you are right about the percentage of people that have allergies is raising and getting more severe. You can even find

Allergies where common 30 years ago, but you are right about the percentage of people that have allergies is raising and getting more severe. You can even find references to allergy going back to Aristotle's time, so not exactly a new thing. I haven't got a link to it, but did take a webinar on allergy some weeks ago. None know exactly why where are getting more allergic, but since allergy most often is the immune system attacking harmless things some theories is that we have to clean an environment in our homes.