Grass allergies?

Just wondering.. what do y'all do when your toddler has grass allergies? (I already scheduled an appointment with the doctor to confirm or deny) I believe its the grass here in Central TX. I know he has seasonal allergies but it seems at certain times I can take him outside and later that day he comes in with tiny bumps. When I take him out and keep him off the grass he seems fine. I also feel a little itching after being in the grass. I've used aquaphor and oatmeal baths and they seem to have gone down a bit since Saturday and not as rough but just sucks! He doesn't act uncomfortable but he can't really tell me so I'm hoping he isn't.

If it is what Im expecting I'm wondering what she will tell us. I'm a bit impatient, the appointment is Wednesday.