Allergy sufferers are also more likely to develop sinusitis, according to the American Academy of Allergy, Asthma & Immunology.
‘Early on, the symptoms of colds and sinusitis are similar,’ said Dr Anju Peters, chairperson of the academy’s rhinosinusitis committee.
‘But if symptoms are worsening after 3-5 days, or if they are present for more than ten days, then sinusitis is the likely culprit,’ he said.
Sinusitis is easily recognized by a green or gray nasal discharge, foul tasting post-nasal drip, facial pain/pressure or light fever. The condition can last for months, or even years, if not properly treated.