For a 20-month-old boy suffering from seasonal allergies, aside from Benadryl, are there any other solutions?

Yes, aside from using Benadryl, there are other solutions for a 20-month-old boy suffering from seasonal allergies. Some options include using nasal solutions, getting Claritin, and following some tips like avoiding outdoor activities when pollen levels are high, washing the face and hands upon entering the house, wearing a hat and sunglasses outside, using a nasal aspirator, and following specific techniques for nasal care. Additionally, giving Claritin syrup for children can also help alleviate symptoms.