Talk to Pulmonologist / Lung on Seasonal Asthma

AOA. I was diagnosed with asthma and it happens only in wheat thresher season. Have been taking medicines for as long as I can remember. Started having mild attacks from last week. Now I'm using nebulizer with atem, , syp. Acefyl. I've taken steroids(deltacortil) and inhalers in pervious seasons but until now the severity is not that much yet. The main Q I wanted ask is that is there any specific remedy avb I can do beforehand every season to avoid such attacks. I do use mask as soon as season starts. But any vaccines or other treatment that can prevent or atleast make the effects Min. Thank you.