Cafe au lait macules are birthmarks and are benign.
Laser treatments can be used to treat it. There are different lasers that can be used. However, usually multiple treatments are required and complete clearance may not be achievable in all cases as treatment response may vary with individuals. Furthermore, the recurrence risk is also very high. For these reasons, you should discuss this carefully with your doctor before starting treatment.
You can see a dermatologist/ aesthetic GP or doctor experienced in laser treatment.