You are very welcome. Yes this does make sense and often this is due to irritation from an allergy or something in the house. Try to think of anything you may have changed in the house such as cleaning supplies, laundry soap,perfumes, body lotions etc. It could also be something outside if the pollen count is high in your area When this starts I would try the saline and see if this helps if not the I would go with the Chlor-Trimeton 2mg once per day. I am on every night so please do not hesitate to come back should you every need me in the future. I am happy to help in any way I can.