Hello, I Started To Take Yaz 3 Weeks Ago Because

Hello, I started to take Yaz 3 weeks ago because of excess bleeding which has lowered my iron levels to 5. I am 49 years old. Now I have vaginal dryness, my mouth tastes like metal and I continue to spot. I was hoping that the melasma on my face would also fade because of this therapy, though it isnt the primary reason for the pills. Any advice?