[Question] Is laser treatment the answer for underarm pigmentation?

I thought it was spring, but the midday sun feels hot as if summer has already arrived.
It's been just a few days, but summer is coming quickly, and the season where we need to pay attention to our clothing will be here soon.
I want to look stylish in sleeveless tops, but the pigmentation in my armpits seems to be getting a little darker every year.
It's a big dilemma. I keep telling myself I can just bite the bullet and go to the hospital, but I'm afraid of getting sick.
Deciding to visit a hospital is not easy, but since facial pigmentation is difficult to treat at home, laser treatment is
I have seen many reviews saying that you need to receive it to see the desired effect. I received a recommended cream last year, so...

I tried using it I am more worried because I haven't seen any results.

Would it be difficult to solve this with a functional cream?

If I need to undergo the procedure, what questions should I ask and what should I know during the in-person consultation?