Cutaneous reactions to pollen extracts in patients with hay fever. Special references to grass pollen recommended for treatment in fixed combination.

Skin reactivity to 8 common grass pollens was investigated in patients with hay fever using commercial, unfractionated extracts in serial dilution technique. The highest degree of sensitivity was observed for cocksfoot, meadow fescue, meadow foxtail, rye grass, timothy and Yorkshire fog. Five of those are included in the Allpyral 5-Grass Mix. The cutaneous responses to rye grass pollen overlap with those to timothy in a high degree.