But, we don't always know the cause.
"Here in Hawaii, the big allergen triggers are dust mites and cockroach particles, mold and animals" said Straub Allergy Specialist Dr. Jeffrey Kam.
I paid a visit to Dr. Kam's office to once and for all-- learn what sets off her symptoms.
For the test, my arms were scratched with allergenic materials, 35 of the usual suspects.
Then, the clock was set for 20 minutes and we watch and wait. If a red bump similar to a mosquito bite appears, that indicates an allergic reaction.
It didn't take long to see results. Turns out I'm allergic to grass, dust mites, cockroach particles, and cats.
According to AlohaCare Medical Director Dr. Rio Banner, "testing is very important because you can identify exactly what the cause of the allergy is."
Banner stresses how important it is to identify the cause, avoid the triggers, and get medicine if necessary.
He explains that "allergies in a very mild form restrict breathing and it may develop to full blown asthma attack."
There are nasal sprays, medicine and shots available depending on your allergies.