help! QUESTION!

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so ever since iโ€™ve ben on the nexplanon ive has this funny brown discharge. but not i am starting to get itchy amd irritated down there๐Ÿ‘‡๐Ÿฝ๐Ÿ‘‡๐Ÿฝ๐Ÿ˜–๐Ÿ˜ญ