If you’ve noticed dark, blotchy, brown, confetti-like patches of skin on your forehead, upper lip, and cheeks, you’ve got chloasma — what’s often called the “mask of pregnancy.” But you’re not alone — this condition affects 50 to 75 percent of expectant mothers.
The mask of pregnancy — technically called melasma or chloasma — appears when a steep rise in estrogen levels stimulates excess melanin production (also known as hyperpigmentation). That means your freckles and moles may look darker now
Fill up on folic acid. Eat foods that contain folic acid (you'll also get plenty in your prenatal supplement), since studies have shown that a folate deficiency can be related to hyperpigmentation. Good choices include green leafy vegetables, oranges, whole-wheat bread, and whole-grain cereal.
Homoeopathy has got good and permanent solutions for these spots if it does not go with all the above method.
Try contacting a good Homoeopathic Doctor in your area.
use cocoa butter or vitamin E creams. Topical treatments with acids and chemical peels can be effective but can take a while for the skin to totally revert to its normal color. Microdermabrasion can also be done, but this might require several sessions. Skin resurfacing using lasers is also an option.