Guidelines for evaluation and management of urticaria in adults and children.

Appropriate management of urticaria depends on the correct evaluation of clinical patterns and causes where these can be identified. Guidance for treatment is presented, based on the strength of evidence available at the time of preparation. As many of the recommendations relate to the off-licence use of drugs, it is particularly important that clinicians should be familiar with dosing and side-effects of treatment in the context of managing urticaria.