What sunscreen would be good for my already sunburned skin? ㅠㅠ

I went on vacation last month.

There are marks on my child's calves along the lines of the water leggings.

I applied sunscreen to exposed areas before swimming on the day.

Knowing I got tanned like this, I used an aloe gel type.

It kept changing and also brought down the fever.

It has been almost a month now.

It has gotten much better, but there are still marks left.

This is a photo taken yesterday.

It seems like you keep worrying about your legs because your school uniform consists of shorts.

To match the skin tone in this state

What should I apply?

I got a recommendation for Dokdo sunscreen so I'm going to give it a try.

I am working on it, but it is worse on my legs than my face.

I'm not sure if this will fix it.

I'd appreciate some advice from those with experience.