@narelled23 That is a question for your pulmonologist (not PCP) - mine actively discourages me from using levalbuterol (another SABA like salbutamol) unless I am in a flare. Yours may have a different opinion.
My doc's rationale is that the LABA in Symbicort should be effective to keep airways open because it has a much longer effective time, and if it fails to work we need to talk. When I was having issues during allergy season, she rewrote my prescription to allow up to two extra doses per day as needed. This works for me.
(Oops, jargon again! LABA long-acting beta agonist, SABA short-acting beta agonist. This is the drug that relaxes the smooth muscles in the airway)