Do not give decongestants to young children for common cold symptoms, say experts

October 11, 2018, British Medical Journal
Credit: CC0 Public Domain

Decongestants should not be given to children under 6—and given with caution in children under 12—as there is no evidence that they alleviate symptoms such as a blocked or runny nose, and their safety is unclear, say experts in The BMJ today.

Instead, they advise doctors to reassure patients that a cold is distressing but symptoms should pass in a few days.

The common cold is usually caused by viruses and is mostly self limiting (symptoms clear in 7 to 10 days) but it can have a substantial impact on work, school, use of health services, and money spent on medications. Children have around 6-8 colds per year and adults have 2-4.

So Professor Mieke van Driel and colleagues analysed published evidence on the effectiveness of treatments for the common cold.

For adults, the evidence suggests that using alone, or with antihistamines or analgesics, for a maximum of 3 to 7 days can have a small effect on .

However, side effects can include an increased risk of insomnia, drowsiness, headache, or stomach upset—and long term use of decongestants can lead to chronic nasal congestion, which is difficult to treat.

Paracetamol and anti-inflammatory drugs (NSAIDs) are sometimes prescribed for pain relief, but they do not appear to improve or . Other treatments, such as steam inhalation, echinacea, vapour rub, , and increased fluid intake, are either not effective or have not been studied at all.

Trials are also lacking for , especially those under 12 who carry the highest burden of common colds.

Decongestants or medicines containing antihistamine should not be given to children under 6, say the authors, and they advise caution between 6 and 12 years. "There is no evidence that these treatments alleviate nasal symptoms and they can cause adverse effects such as drowsiness or gastrointestinal (stomach) upset," they write. In children under 2 they have been associated with convulsions, and death.

None of the other commonly used over-the-counter and home treatments, such as heated humidified air, analgesics, eucalyptus oil, or echinacea, are supported by adequate evidence, they add.

"If parents are concerned about their child's comfort, saline nasal irrigations or drops can be used safely, but this may not give the desired relief," they write.

Finally, they say ongoing research is unlikely to provide relevant evidence or address the uncertainty surrounding treatments for the . "Based on the currently available evidence, reassurance that symptoms are self limiting is the best you can offer patients, although short term use of decongestants in adults can provide some relief from a blocked nose," they conclude.

Explore further: How long should you stay away when you have a cold or the flu?

More information: Mieke L van Driel et al. What treatments are effective for common cold in adults and children?, BMJ (2018). DOI: 10.1136/bmj.k3786

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