That will severely limit your travel opportunities. For example, ET ex ADD and many airlines on arrival into Oz such as AC and sometimes UA. Breathing through a cloth and closing eyes for a minute solves the irritation. Spraying is important for biosecurity eg spread of malaria.
I have yet to be "severely limited" by this, as it is the only time I've ever experienced it in many countries. Maybe someone else can confirm if this is standard for Egypt arrivals everywhere, but I recall someone telling me this can be avoided on certain routes.