The paper includes a clinical form and stepped procedure for clinical technicians on how best to record and evaluate skin tests. As house dust mites are known to be the major cause of allergy, worldwide, and the environment in which they thrive encourages moulds, and other allergy triggers, early skin prick testing, especially for children, is recommended.
There are some patients however who can skin prick test positive for a specific allergen but have no clinical symptoms to that trigger. They would be considered allergen 'tolerant' to the trigger and avoidance advice may not be appropriate. On the other hand, there are a few patients who may be at risk of a serious allergic reaction to a trigger but demonstrate no outward reaction in common allergy testing. In all cases, allergy testing needs be a clinical procedure by trained clinicians.
'Skin Testing', John Oppenheirmer MD, Harold S Nelson MD 'Ann Allergy Asthma Immunol.' 2006;96 (Suppl.1): S6-S12
'Risk Assessment in anaphylaxis: Current and future approaches', F. Estelle R. Simons, MD et al, 2007, 'J Allergy Clin Immunol', Vol. 120, Number 1: p S2-S24