Baby is 14 weeks old with nasal congestion. What else can be done besides using hydrasense and a baby nasal aspirator?

An effective technique for nasal congestion in a 14-week-old baby is described in a document found at the provided link. This technique involves using a syringe without a needle, saline water, and administering 10 mL of water per nostril 3-5 times a day. Parents typically see significant improvement in less than 2 days.