What should you know about chest infection antibiotic?

Chest infections include illnesses affecting the airways or lungs. Acute bronchitis often follows a viral infection and may cause cough, phlegm, fever, or wheezing; antibiotics do not remove a virus. Bacterial infection or a more serious illness may need different treatment, so the decision depends on examination, breathing, symptom pattern, and health conditions. Phlegm colour alone cannot establish the cause. Antibiotics can cause side effects, including diarrhoea, nausea, rash, or allergic reactions, and unnecessary use encourages resistance.

Arrange a GP consultation if symptoms are significant, worsening, or affecting breathing. If an antibiotic is prescribed, take it exactly as directed and ask what to do about a missed dose; do not share it, save leftovers, or use someone else's medicine. Tell the prescriber about allergies, pregnancy, kidney or liver disease, and current medicines. Rest, drink fluids, avoid smoking, and monitor cough, fever, phlegm, and wheezing. Nebuliser treatment is separate from antibiotics and is considered only for particular breathing problems.

Get urgent help for severe breathlessness, chest pain, blue lips, confusion, fainting, coughing blood, or a rapidly deteriorating condition. Contact a clinician promptly if fever persists, breathing becomes harder, wheezing worsens, you cannot keep fluids down, or symptoms fail to improve. After an antibiotic, seek urgent help for facial swelling, widespread hives, severe diarrhoea, or difficulty breathing.

What findings suggest bacteria rather than a virus? What benefits and side effects should I expect from this medicine? Which symptoms mean I should return for review?