Yes, they can.

I have a dog who scratches a lot more in the summer. He's sensitive to something that grows in the backyard. His vet isn't too concerned about finding out what it is. I give him extra baths to keep the itching down. He also scratches at his face.

Benedryl is a good solution. Hopefully, your dog's symptoms will decrease as she gets used to the atmosphere. It can be pretty expensive to find out exactly what's causing the problem. If the dog is really miserable, or the Benedryl doesn't work, it might be worth it to find out.

Mary