Cimber said:Maybe it Birch tree pollen?
Back in 2010 he suffered massively from allergy in CI, which was at the end of march. The birch season usually begins to wear off in end may-beginning of june, but if it was late this season that might have still been high in Dauphiné
http://velonews.competitor.com/2010...ening-stage-at-criterium-international_109578
"Double Tour de France champion Alberto Contador endured a painful start to the Criterium International on Saturday when he suffered an allergy attack during the opening stage"
Birch is not a common tree, and in July no problem with that even late season as this one. Maybe affected him at Dauphine? it is possible, in the Tour is impossible.
When he talk he is not worried about that, so...