“…Measurement of histamine levels in the skin is an important clinical parameter in various allergy diseases such as anaphylaxis [1,2] , atopic dermatitis [3,4] , pruritus [5,6] , allergic skin inflammation [7,8] , mastocytosis [9] , hives [10,11] and psoriatic skin [12] , as well as in preclinical experimental allergy research [13][14][15][16][17][18] .…”