Preventing seasonal allergies involves several strategies. First, minimize exposure to allergens like pollen by staying indoors on high pollen days, especially during peak times like early morning and late afternoon. Keep windows closed and use air conditioning with HEPA filters to trap allergens. Shower and change clothes after spending time outdoors to remove pollen. Additionally, consider using allergen-blocking bedding and avoiding outdoor activities like mowing lawns or gardening during peak pollen seasons. Regularly clean indoor spaces to reduce dust and mold buildup. Finally, consult with a healthcare professional for allergy testing and personalized treatment options such as medications or immunotherapy.