Can applying deodorant/antiperspirant several times a day harm you in any way?

One of my kids is obsessed with smelling good. She wears perfume, uses scented body wash/shampoo, etc. Thankfully, she has good taste and does smell good!

I’m a little concerned because she re-applies her deodorant (which is also an antiperspirant) throughout the day, including just before bed. Can this hurt her in any way, or is it just a harmless quirk she has?