Lotion to apply after laser hair removal

I am getting laser hair removal on my calves and knees.

This is a cream prescribed by the hospital to prevent folliculitis after hair removal.

It's 20,000 won. ㅠㅠ yikes.

I paid 160,000 won for 6 calf hair removal sessions, but it feels like the cream is more expensive haha.

I wonder what ingredient it is that makes it effective even for mosquito bites.

After shaving my underarms, all the sweat went to my back as a compensatory reaction, so I'm a bit worried about whether shaving my legs will be okay, haha.

I need to shake the cream well before applying it to prevent inflammation.