Try applying deodorant.
Actually the use of "deo" is the problem in Europe. They should be using antiperspirant....deoderants only mask the smell and control the initial odor causing bacteria. Here in the states, most of us use products which are a combi of the two, deo and anti-perspirant.
And while I love to rag on the french as much as the next person...it's not just the french who smell.