Skin prick tests or IgE to common environmental allergens

Agent	Wheal diameter (mm)
Diluent control	0
House dust	8
Feathers	0
Horse hair	0
Cat fur	0
Dog hair	3
Mixed grasses	0
Mixed tree pollens	0
Plaintain	0
Egg	0
Milk	0
Histamine	5
Fish	0
Wheat pollen	0
Dermatophagoides pteronyssinus	8
Cladosporium	0
Alternaria	0
Aspergillus fumigatus	0
Penicillin	0
Merulius lacrymans	0
Botritus	0