In a 6-month-old baby, symptoms such as a runny nose, cough, and mild fever are often due to a viral infection, but persistent vomiting after giving medicine and a persistent fever require closer attention. While a fever around 100 degrees Fahrenheit can take some time to settle, your baby should not be repeatedly vomiting or becoming weaker, as this can lead to dehydration and poor feeding. Fepanil is usually given to reduce fever, but some babies may not tolerate it well and can vomit after taking it. Azithro is an antibiotic, and it does not reduce fever immediately, so the fever may persist for some time. However, repeated vomiting after giving medicine is not something to ignore. At this stage, you should contact your doctor again as soon as possible. The medicine may need to be changed or the dose adjusted. Meanwhile, try to keep your baby hydrated by breastfeeding or offering fluids frequently. If your baby is very sleepy, not feeding, has fewer wet diapers, or the fever increases, seek urgent medical care. Early review can help prevent complications and ensure your baby recovers safely.