I remember I have no problem to use the shower in the IFL in SFO and HKG. However, last thursday I was flying in F on UA829 ORD-HKG, agent said the showers are only for the arrival pax, I asked if I could paid a fee to use it, she said there is no fee inside the lounge, and told me I can go out of the security to use to shower at hilton (the gym at the CTA level) for a fee. Since I have plenty of time, I did so anyway, but it costs $6 (HHonors), non-member $11, just basic showers, nothing like the shower inside IFL....