Our Symptom checker provides clinical advice on what to do next based on your symptoms.
Asthma symptoms can include a cough, wheezing, chest tightness and breathlessness. Learn more about its causes, symptoms and treatment options.
Penicillin is the name given to a widely-used group of antibiotic drugs. Penicillin can have side-effects, and some people suffer allergic reactions. Find out more here.
Symptoms of serious illness in babies and children
If your child has a serious illness, it’s important to get medical attention quickly. Learn how to recognise the symptoms and what to do.
Bronchiolitis is a chest infection that affects a child’s ability to breathe freely. It usually appears in children under 12 months old.
Allergic reactions to antibiotics
Some people have an allergic reaction to antibiotics. Learn about the symptoms and the difference between allergic reactions and side effects.
Food allergies in children
Does your family have a history of eczema, asthma, hay fever or food allergies? Learn about food allergies in children and how to spot a reaction.
Respiratory syncytial virus
RSV infects a person's airways and lungs. Learn about the causes, treatment and prevention of RSV, and how to stop the virus from spreading.
Your respiratory system brings oxygen into your body and helps to remove carbon dioxide. Learn more about how it functions and related conditions.
During a bronchoscopy, a doctor views your airways and lungs. By inserting a tube attached to a camera, they aim to diagnose or treat a condition.
Anaphylaxis is very serious and can even be fatal. See here for the symptoms to look out for and what to do in an emergency.