symptoms of pet allergies

My children like very much to visit their grandparents. They will have vacation next month and they would like to visit my parents. My worrying is about theirs pet allergies. My parents are living in country and they have a lot of pets. I suppose that I should talk to my parents about pet allergy symptoms and treatment.

Based to your writing I suppose that your children will deliver allergy symptoms soon after their contact with pets. There for I think that you need to talk seriously with your parents. You need to inform them about all the symptoms of allergy and treatment. I also think that is very important, for you, to pack medicines your children are using among their thing.