got allergy?

Was talking to a friend a few minutes before I write this post and he was like not feeling well. Some sort or allergy has invaded his good self thus making him unable to report for work. What he's doing now is actually hunting for the best allergy relief online - that can be ship to his place the soonest time possible. So as help to his problem, I am also now searching and asking friends on what effective OTC brand he can get for the allergy to go away before heading out to see a doctor.I wonder what could be the cause of allergies... it just made me say my thanks for not having one! :D