I have blemishes on my face. Please recommend an effective blemish care product.

I was looking in the mirror and I was shocked to see dark spots under my eyes. ㅠㅠ I diligently applied sunscreen, so why did they appear? Sob sob... I want to take care of them before they get darker, so please recommend a reliable dark spot management product! Do you have any recommendations for effective dark spot management products that you can buy at Olive Young or online? ㅎㅎ

I don't have enough money to go to the dermatologist, so I want to try home care ㅠㅠ If you could recommend a mild, non-irritating whitening ampoule or cream to manage freckles, I would really appreciate it! Everyone who leaves a comment will have beautiful skin ㅋㅋ Thank you in advance ^^