As 2 more doglets got rushed to the vet today with seeds in ears, I would really like to drive home the urgency of getting these seen to.
Signs to look for are constant shaking of ears and head tilt. Often your dog will cry, pace, squeal and possibly get aggitated if you touch the affected ear. If your dog is quiet and trying to remain still, don't take this as it's ok to leave it.
A seed, especially a foxtail has a sharp point which will bury itself into your dogs ear canal.
At worst it will travel right down the ear and burst the ear drum. Dog's ear drums do heal, but it's not very nice for them. The seeds migrate down the ear at an amazingly fast pace too.
Please don't delay in getting vetinary treatment.