I Have Never Been Allergy Tested But I Know I

I have never been allergy tested but I know I am very allergic to cedar and oak pollen. I have pneumonia now, the oak pollen is very high here in Austin. What would an allergist do for me as way of preventing getting very sick again, I don't think I need to be tested as I know what's making me sick year after year. Thanks.

Maggiemignery