(Concern) Pigmentation ㅠㅠ

My skin concern these days is hyperpigmentationㅠㅠ

It's already spring now, and summer will be here soon, right?!

I'm thinking I should start managing my body and preparing for summer since my clothes are gradually getting thinner, haha.

Meanwhile, the visible problem is that the areas where the skin is exposed are increasing, and it seems that pigmentation has become more prominent mainly in the folded areasㅠㅠ

For example, the armpit and the area where the arm bends, etc.ㅠㅠ

Especially the armpits, I get hair removal in summer, but after removing hair, it actually looks more noticeable, so I'm worried... haha

But not removing hair is even worse, soㅠㅠㅎㅎ

I have relatively fair skin, so maybe that's why the pigmentation spots seem more noticeable...ㅠ

How do you resolve pigmentation?

Please let me know if you have any effective methods!! Haha

Of course, I hope for a method that is as painless and inexpensive as possible ^^