Is there any medecine for 3 weeks old baby for congetion?

A lot of: Medications are not approved by fda for children less than two years old. Usually saline solutions and suctioning the nose helps or steaming up the bathroom helps loosen up the dried mucus in the nostril.Applying vaseline ointment or aquaphor ointment helps prevent drying inside the nose after cleaning out boogers. As long as your baby is feeding well, don't let the nasal congestion bother you!

Nasal wash: At 3 weeks the primary cause of congestion is the environment. House dust, fragrance, perfumes, detergent or cleaning products all leave scents that may not bother you but irritate a babies nose. A good nasal clean out with saline can remove much of this irritant load, but removing the offending irritants from babies life helps more in the long run.Air particle filters can also help.