Daughter suffering from constant runny nose

[HappyF]

My daughter suffers from a constant runny nose, which is affecting her sleeping. I'm not sure what to do. I'm currently considering purchasing an air purifier and I wondered if anyone's currently going through the same thing?

Possibly a house dust mite allergy?

DD had a runny nose for weeks after a cold. I considered going to the doctors but read online it could be a lactose intolerance. Switched her to lactose free milk and it cleared up within days. Went on holiday (AI) where she had ice cream every day and it came back! We’re not really strict about it but having the different milk seems to keep it under control.

DS had this ongoing for weeks after a cold, I thought it’d just run its course but he was sniffing and all the gunk built up in his ears till his eardrum burst one day His adenoids were enlarged, which was causing it. Might be worth getting her checked out by your gp.