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.brutanyl, 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.