The asthma precipitated may be life threatening. Asthma and nasal polyposis associated with salicylates follows a protracted course even if aspirin is avoided thereafter. Paradoxically aspirin has been reported to relieve asthma in some patients. Children with asthma may also be affected by aspirin. Chronic Urticaria Aspirin has been found to be a trigger factor in a percentage of adult patients with chronic urticaria.
Children are less affected.
There appears to be a different mechanism in asthma and urticaria, and patients rarely have both tiggered by aspirin. Nasal Polyposis Rhinorrhoea and the development of nasal polyposis can be provoked by aspirin, but more often in adults than in children. Two non-asthmatic adults were anecdotally reported to have developed hoarseness and laryngeal oedema. Although many authors suggest that salicylates result in behaviour problems in children there is no objective evidence from double blind placebo controlled trials to support this. Salicylates Various symptoms, including hyperactivity, have been attributed to an intolerance to salicylates.