{"id":"2d0c3fe023def535d290c5e3cc1c0d27","slug":"does-my-18-month-old-need-antibiotics-if-fever-is-gone-but-cough-worsens-after-5-days","question":"Does my 18 month old need antibiotics if fever is gone but cough worsens after 5 days?","answer":"If your 18-month-old's fever has cleared but the cough is worsening after 5 days, antibiotics are unlikely to help. Research on mild chest infections shows that symptoms typically last around 5-6 days whether or not antibiotics are given — they don't speed recovery. A worsening cough after the fever breaks could signal a few different things (post-viral cough, secondary infection, or ongoing inflammation from the original illness), but whether it's viral or bacterial, whether antibiotics are actually needed depends on your pediatrician's assessment of your child, not the cough duration alone.\n\nThe safest next step is to contact your pediatrician and describe exactly what you're seeing — they may want to examine your 18-month-old to rule out a complication or secondary infection, or they may reassure you that a lingering cough is normal and recommend continued rest, fluids, and patience while the body finishes clearing the infection.\n\nContact your pediatrician if your child develops rapid or labored breathing, persistent high fever returns, they seem unusually drowsy or unresponsive, or symptoms worsen significantly over the next day or two.","sources":"[{\"pmid\":\"37436003\",\"title\":\"Antibiotics for lower respiratory tract infection in children presenting in primary care: ARTIC-PC RCT.\",\"journal\":\"Health technology assessment (Winchester, England)\",\"year\":\"2023\",\"url\":\"https://pubmed.ncbi.nlm.nih.gov/37436003/\",\"score\":0.8},{\"pmid\":\"36223620\",\"title\":\"Using procalcitonin levels to predict infection and reduce unnecessary antibiotic usage in febrile children aged 3-36 months.\",\"journal\":\"Journal of infection in developing countries\",\"year\":\"2022\",\"url\":\"https://pubmed.ncbi.nlm.nih.gov/36223620/\",\"score\":0.79}]","thread_json":null,"topic":"fever-and-illness","view_count":0,"created_at":"2026-09-13T23:00:55.876Z"}