 In the second part of the study 60 patients participates in a RCT with intralymphatic injections with both ALK Alutard Birch AND ALK Alutard 5-grasses. The injections are given intralymphatically with one allergen in each groin with 30 minutes observation between injections. Dose and dose interval are the same as in the first part of the study; the active group recieves 1000 SQ-U ALK Alutard Birch in right groin and 1000 SQ-U 5-grasses in left groin. The injections are given 3 times with 4 weeks interval. Enrollment and treatment is completed and the results will be evaluated in the autumn 2015. 