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Respiratory Infections — Online Doctor Ireland

Chest infections, persistent cough, sore throat and sinus symptoms assessed by an Irish-registered doctor — same-day video appointments, sick cert where warranted.

Clinically reviewed by Dr Tiago Miguel Figueira· IMC 523449Last reviewed October 16, 2026

Respiratory symptoms assessed today

Coughs, chest infections and sore throats are the most common reason people look for a doctor at short notice — and most of them can be assessed safely by video. Our Irish-registered doctors take a full history, look at your throat and breathing on camera, and tell you what this is, what to do about it, and what would make it urgent.

What we assess by video

  • Chest infections and bronchitis
  • A cough that has not settled after two to three weeks
  • Sore throat and tonsillitis
  • Sinusitis and persistent nasal congestion
  • Flu, COVID-19 and other viral illness
  • Asthma or COPD symptoms that have worsened

Upper and lower respiratory infections

Respiratory tract infections can affect your sinuses, throat, airways or lungs. Doctors group them into two kinds:

  • Upper (nose, sinuses and throat): colds, sinusitis, tonsillitis and laryngitis.
  • Lower (airways and lungs): bronchitis, bronchiolitis, chest infections and pneumonia. These tend to last longer and can be more serious.

Flu can be either. Most respiratory infections pass within 1 to 2 weeks and can be looked after at home.

Sore throat, blocked nose and the other symptoms

Not every respiratory infection reaches your chest. The HSE lists the usual symptoms as a cough (sometimes with mucus), sneezing, a stuffed or runny nose, a sore throat, headaches, muscle aches, breathlessness or a tight chest, a high temperature and feeling generally unwell. You may have a few of these or most of them.

For a sore throat, gargling with warm salt water can help: dissolve half a teaspoon of salt in a glass of warm water, gargle, then spit it out. This is not suitable for children. A hot lemon and honey drink soothes a cough, but do not give honey to babies or hot drinks to small children.

If you buy a cold or flu remedy, check whether it already contains paracetamol or ibuprofen. If you are taking those separately, it is easy to go over the recommended dose. Some products are not suitable for children, babies or pregnant women, so ask your pharmacist.

Is it flu or a cold?

The speed tells you a lot. Flu comes on quickly, often within a few hours, and leaves you exhausted and unable to carry on as normal. It affects more than your nose and throat. A cold builds gradually over a day or two, mostly affects your nose and throat, and most people can keep going with it.

Both are viral, so antibiotics do not help either of them, and you look after yourself the same way: rest, drink plenty of fluids and take paracetamol or ibuprofen if you need them. If you are 65 or over, pregnant or have a long-term condition, the HSE advises asking your GP or pharmacist about the yearly flu vaccine.

Signs of a chest infection

Chest infections often follow a cold or flu. The HSE lists the main symptoms as:

  • a chesty, wet cough, often bringing up green or yellow mucus
  • wheezing and shortness of breath
  • a temperature of 38°C or above
  • headache, aching muscles and tiredness

Most chest infections get better on their own in about 7 to 10 days, though the cough and mucus can hang on for up to 3 weeks. It is that lingering cough that worries people most, and on its own it is usually part of normal recovery.

Looking after yourself at home

  • Get plenty of rest.
  • Drink lots of water. It loosens mucus and makes it easier to cough up.
  • Use paracetamol or ibuprofen to bring down a fever and ease headache and aches.
  • Sleep with extra pillows to raise your head.
  • A hot drink with lemon and honey can soothe a sore throat (no honey for babies under 1).
  • Do not smoke, and do not give aspirin to anyone under 16.

Your pharmacist can suggest decongestants or nasal sprays. Cough medicines and lozenges are widely sold, but there is little evidence that they help.

When to see a doctor

Book a consultation if you have a chest or respiratory infection and:

  • you feel very unwell, or your symptoms are getting worse
  • you cough up blood or blood-stained mucus
  • your cough has lasted more than 3 weeks
  • you are pregnant or aged 65 or over
  • you have a weak immune system (for example from diabetes or chemotherapy)
  • you have a long-term heart, lung or kidney condition
  • you still feel unwell after finishing a course of antibiotics

Severe symptoms can mean pneumonia, which needs prompt medical care.

When you need to be seen in person instead

Video has limits, and we are direct about them. Go to an emergency department or call 112/999 if you have severe breathlessness at rest, chest pain, blue lips, confusion or drowsiness, or if you are coughing blood. A video consultation is not the right route for those, and your doctor will say so immediately if any of it comes up.

What a video consultation cannot check

Your doctor can watch how you breathe, look at your throat on camera and take a careful history. They cannot listen to your chest with a stethoscope, measure your oxygen level unless you have a pulse oximeter at home, or take a chest X-ray during the call. If your history suggests pneumonia or another problem that needs those checks, they will tell you where to go and how soon, or arrange a referral for imaging.

Antibiotics are not automatic

Most respiratory infections are viral, and antibiotics do nothing for them. Your doctor recommends treatment where the assessment points to a bacterial infection, and explains the reasoning either way — including what should improve, by when, and when to come back. That is a clinical decision, not something bookable in advance.

If you do need antibiotics

Take them exactly as your doctor tells you, and finish the course even if you start to feel better. Antibiotics do not work for viruses, so a course that was not needed only adds side effects and resistance. Sometimes a doctor asks for a sample of mucus to be tested, to find out what caused the infection. If you are not improving as expected, or you still feel unwell after finishing the course, book a review.

Avoiding passing it on

Coughs and sneezes spread these infections. Cough into your elbow or a tissue, bin tissues straight away and wash your hands often with soap and warm water. The HSE advises waiting until your temperature has been normal (under 38°C) for at least 24 hours before mixing with others, and keeping away from newborns, older people and anyone with a weak immune system until your cough has gone.

If you are 65 or over or have a long-term condition, ask your GP or pharmacist about the yearly flu vaccine and whether you should have the pneumococcal vaccine, which helps prevent pneumonia.

Related services

Consultations are available in English, and in Arabic, Urdu, Punjabi, Portuguese, Spanish, French and Czech with the doctors who speak them — see the full Irish roster.

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Sources

Questions

Frequently Asked Questions

Can a doctor treat a chest infection over video?

In most cases, yes. The doctor takes a full history, observes your breathing and throat on camera, and decides on treatment. Where a physical examination or a chest X-ray is needed, they arrange it or direct you to in-person care.

Do I need antibiotics for a chest infection?

Only if the assessment points to a bacterial infection. Most coughs and chest infections are viral, and antibiotics do not work on viruses. The doctor explains the decision either way, tells you what should improve and by when, and when to come back. If you are recommended a course, take it exactly as directed and finish it.

How long should a cough last before I see a doctor?

Book sooner if you are breathless, feverish, or have a chronic lung condition. Otherwise, a cough lasting more than three weeks should be assessed even if you feel otherwise well.

Can I get a sick cert for a chest infection?

Yes, where the doctor's assessment supports time off work or college. It is issued after the consultation, at the doctor's discretion.

How do I know if I have a chest infection?

The usual signs are a chesty cough bringing up green or yellow mucus, wheezing or breathlessness, a temperature of 38°C or more, headache, aching muscles and tiredness. It often follows a cold or flu. A doctor can tell you whether it sounds viral or bacterial and whether you need treatment. Steroid tablets or inhalers are not used for a chest infection on its own. They may help only if you also have an airway condition such as asthma.

How long does a chest infection last?

Most chest infections improve within 7 to 10 days. The cough and mucus can last up to 3 weeks, which is a normal part of recovery. Rest, plenty of water and paracetamol or ibuprofen help while you get better. If you are getting worse, or the cough goes on beyond 3 weeks, see a doctor.

Is bronchitis a chest infection?

Yes. Bronchitis is a lower respiratory tract infection, the same group as chest infections and pneumonia. The NHS describes it as inflammation of the airways in the lungs, usually caused by a virus. Most bronchitis clears up on its own in about 3 weeks, and most people do not need antibiotics.

Is a chest infection contagious?

The viruses and bacteria behind chest infections spread through coughs and sneezes. Cough into a tissue or your elbow, wash your hands often, and stay away from newborns, older people and anyone with a weak immune system until your cough has gone.

Should I go to work with a chest infection?

The HSE advises waiting until your temperature has been normal (under 38°C) for at least 24 hours before mixing with other people, and avoiding newborns, older people and anyone with a weak immune system until your cough has gone. If you need a sick cert, a doctor can provide one where the assessment supports it.

Medical disclaimer. Information on this page is general and is not a substitute for professional medical advice, diagnosis or treatment. Book a consultation to discuss your situation with a doctor registered to practise in Ireland.

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Respiratory Infections — Online Doctor Ireland