Respiratory Infections: What You Need to Know

Everyone catches a cold or a bad cough now and then, but some infections go deeper into the lungs and need more care. Respiratory infections cover everything from a simple sore throat to serious pneumonia. Knowing the basics can help you decide when a home remedy is enough and when you should call a doctor.

Typical symptoms and when to seek help

Most infections start with a runny nose, sore throat, or a tickle that makes you cough. You might also feel tired, have a fever, or notice shortness of breath. A cough that brings up green or yellow mucus, chest pain, or a fever higher than 38.5°C (101.5°F) should raise an alarm. If you’re having trouble catching your breath, feel dizzy, or notice a rapid heartbeat, get medical help right away. Those signs can mean the infection is spreading or that you have a more serious condition like pneumonia.

Medication options and safety tips

Most viral infections, like the flu or a common cold, don’t need antibiotics. Rest, fluids, and over‑the‑counter pain relievers usually do the trick. If a doctor diagnoses a bacterial infection, they may prescribe antibiotics such as amoxicillin or, for more stubborn cases, a drug like linezolid (often used for hospital‑acquired pneumonia). It’s crucial to finish the full course, even if you feel better early, to prevent resistance.

For allergy‑related coughs, antihistamines like levocetirizine (brand name Xyzal) can calm the symptoms. Always check the dosage and whether you need a prescription in New Zealand. Cough suppressants containing dextromethorphan are fine for a dry cough, but if you’re coughing up mucus, a expectorant like guaifenesin helps clear it faster.

When you need a prescription medication, buy it from a reputable pharmacy. Look for a New Zealand pharmacy licence, verify the address, and avoid sites that ask for cash payments only. If you’re unsure, use the NaNUKE guides on safe online buying – they walk you through checking a pharmacy’s credentials, comparing prices, and spotting red flags.

Finally, support your lungs with simple habits: quit smoking, use a humidifier in dry rooms, and stay hydrated. If you have a chronic condition like asthma or COPD, keep your inhalers handy and follow your doctor’s action plan. With the right information and a bit of care, most respiratory infections clear up without trouble, and you’ll know exactly when to get professional help.