Questions about laser removal of freckles and blemishes and management methods

As the weather has gotten warmer and UV rays have intensified, the melasma, freckles, and blemishes on my face have become noticeably darker. I have been diligently applying whitening cosmetics, but they don't seem to have much effect on the pigmentation that has already deepened. I am wondering if I ultimately need laser treatment at a dermatology clinic to get clear skin. If getting laser treatment at this time is not irritating and poses no risk of side effects, are there any effective ways to lighten melasma or blemishes through dermatological treatment?

I would be grateful if you could share in detail any whitening ingredients that require special attention during the summer, or practical care tips to prevent pigmentation from darkening further. I want to soothe this messy skin as soon as possible.