9y/0 sneezing is the anything i can get them to avoid things getting worse ?

Environment control.: Sneezing may be because of irritation of dusts and fumes however it may also be seen with viral infections. The most important thing may be to limit exposure to dusts or known irritants like pets. Clean with damp clothes to reduce raising dusts and clean beddings to sleep may help. There are medications for allergies, however see a medical person for advice may be better.