Namasthe Welcome to Healthcare-Magic Greetings of the day Dear Ms/Mr The most likely cause of recurrent nasal congestion appears to be allergic rhinitis. The allergy in majority of the cases is due to dust and mites. This is a common problem encountered in children. Do not worry things can be taken care off. I would advise you the following, which i am sure will definitely help 1. Steam inhalation: It will be a good habit to cultivate. Steam inhalation for 10-15 minutes each session twice a day. Give it regularly even if she is alright. It helps reduce nasal congestion and also clears the nose. You can buy a good quality electronic steamer 2. Monticope suspension: It has antihistaminic and mast cell stabilizer which will help reduce airway hyper reactivity and reduce the incidence of future attacks. It has to be used for 4- 6 months after which it can be stopped. 2.5 mg of Montelukast once daily 3. Wash the bed sheets pillow covers and cloth of baby in hot boiling water: It will remove the dust , mites and allergic substance present in it. 4. Decoction: To a cup of milk + 20 tulsi leaves+ 1 spoon of turmeric + small piece of ginger + 4 black pepper + 2 spoon of sugar. Bring it to boil. Filter it and feed her warm daily. It will reduce airway congestion and also Tulsi will boost immunity 5. Chyawanprash : 1 teaspoon twice a day will be beneficial to build up immunity 6. Himalaya Septilin syrup 5 ml twice a day will also boost immunity. Continue giving her for 3-4 months. Do get back to me for any further assistance, will be glad to assist you. Take Care Best Regards Dr Deepak Kishore MBBS,MS,MCH Consultant Pediatric Surgeon