Among the things I have tested positive for (allergic reactions to for Asthma) is grass pollens and molds the can easily develop in wet soil. My seasonal allergies, anymore, run from January 1 to December 31. There are some masks that you can use, if necessary, although small children probably would not wear them. Use the inhalers and keep the emergency inhaler nearby, as I do, and find out if desensitizing shots are available.