There are dark patches

because of scratching? Use lotion, bio oil, and skin exfoliator or scrub might help.

i didnt scratxh

Looks normal. Just some light color patches. Perfect skin on magazines and ads are made using photoshop. However, you can visit a doctor if you are really sensitive about it and those patches annoy you. They will give uou some prescribed cream which will remove them after using a few months.