How can i get rid of uper lip line that showed up after i had my 3rd child?

Time and sunscreen: This line, often a condition called melasma, is the darkening of skin related to hormonal changes. After your hormones revert back to normal levels this line should reduce over time. Avoid sun exposure to reduce the darkening and time this condition lasts. Finally, if no resolution is occurring over several months to a year, speak to a dermatologist about reducing/lightening options.