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    An_224724 posted:
    I have been on birth control for about a year, and this week my doctor gave me a cortisone shot, supposedly to help my allergies. Will this interfere with my birth control?
    Should I be worried to have protected sex after having this injection? How long will it stay in my system for?
    PLEASE help!
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    Elizabeth_WebMD_Staff responded:
    Hi Anon,

    Please check with your doctor or pharmacist for answers to your questions. You should be able to call a 24hr pharmacy and speak with a pharmacist.

    You can also look up your birth control in our Drug and Medication Guide for information. In the meantime use other forms of protection during sex.

    Hope this is helpful,

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