A decongesting device for administering medicinal vapors directly to the nostrils of infants. The infant decongester comprises a ring of medicated material 16 encased in a perforated hollow flange 18 and cover 20. Said ring is made of a material such that it can absorb medicines that emit decongesting vapors. Said flange and cover are made of a sufficiently rigid material and permanently sealed so as to isolate said ring from infant. The infant decongester is fitted around the neck 22 of a feeding container 26 and then held securely in place by a cap and nipple assembly 28.