Drowned neck is usually seen in obese infants and is mainly caused by poor ventilation of the neck, sweating or repeated rubbing of clothing. The treatment can be localized with mometasone cream or Eutropharm ointment. Some children may develop fungal infections, which may require the addition of dacrynic acid. In case of secondary bacterial infection, Bactrim or Erythromycin ointment should be added. In addition to these treatments, attention should also be paid to the choice of clothing, avoiding contact with chemical fiber clothing and choosing cotton or silk clothing, which are less likely to cause skin allergies and irritation to the skin. In terms of care, we should also pay attention to the cleanliness and breathability of the neck.