Only One Dose Of Amoxicillin
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I have severe anxiety, I have no clue the pressure in my left ear is an ear infection or what.... I went to urgent Care and the dr said it looked like a little redness and gave me 500mg of amoxicillin twice daily. For ten days. I took one dose and had a rash all the way up my arm, but Benadryl spray on it and it's almost gone. How long will it take for it to get out of my system?

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@BrittR,

According the drug half-life calculator here on MedsChat, Amoxicillin has an estimated half-life of 1.5 hours. So it would take roughly 16.5 hours for that one dose to be excreted from your body... (not taking into consideration other underlying factors that could influence absorption / excretion rates).

Although I suspect that the rash has dissipated since the timing of your post (two days ago), in the case of an allergic reaction such as what you described, the US National Institute of Health does recommend that you contact your doctor immediately. Just something to be aware of for future reference I suppose... In more extreme cases, it may also be a good idea to call poison control and/or seek emergency medical help to be on safe side. Sometimes you never know how bad symptoms will get and these precautionary measures should help put your mind at ease. Thankfully there are many other types of antibiotics to choose from.

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Britt

Why don't you contact the urgent care facility that prescribed the amoxicillin they could probably answer your questions better then we can without benefit of your history and underlying issues..these forums should never be substituted for skilled medical providers.

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