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Dr. Andrew Rynne
MD
Dr. Andrew Rynne

Family Physician

Exp 50 years

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What Causes A Painful Knot On The Upper Back?

one morning I woke up with what appeared like a knot on my upper back. it was exteremly tender to the touch. I thought it was knot until i saw a bruse. because I have had spider bites before I m thinking I got bitten again. However, this time it seems to be more painful. There shortly I started with what think is kedney pain. What antibiotic would help?
Fri, 31 Aug 2018
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General & Family Physician,  's  Response
Hi,

The knot you have on your upper back extremely tender to the touch that turned a bruise could be due to any trauma you had on that part. If you really noted a bruise, should apply alternating cold and warm compresses to disperse the clotted blood from trauma. Applying heparin gel can also help.To rule out any kidney issue, I advise to run urine analysis and check kidney function in blood.

To decide if you need antibiotic, I need to have a look at the knot or bruise myself first. So, I would determine if it is from infected spider bite. Furthermore, antibiotics can be given only by prescription from your caring doctor. So, please check it out with your primary.

Hope I have answered your query.
Let me know if I can assist you further.
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What Causes A Painful Knot On The Upper Back?

Hi, The knot you have on your upper back extremely tender to the touch that turned a bruise could be due to any trauma you had on that part. If you really noted a bruise, should apply alternating cold and warm compresses to disperse the clotted blood from trauma. Applying heparin gel can also help.To rule out any kidney issue, I advise to run urine analysis and check kidney function in blood. To decide if you need antibiotic, I need to have a look at the knot or bruise myself first. So, I would determine if it is from infected spider bite. Furthermore, antibiotics can be given only by prescription from your caring doctor. So, please check it out with your primary. Hope I have answered your query. Let me know if I can assist you further.