Histamine 50-Skin-Prick Test: A Tool to Diagnose Histamine Intolerance
Figure 1
patients with histamine intolerance: skin prick test wheal size read from 15 to 60 minutes. Test substance: “pangramin prick positive control: active agent: 1% histamine dihydrochloride,” solution, (10 mg/ml), cut off level ≥ 3 mm.