22yrs male rbs 6.0, s.creatinine1.9but20 days ago it was3.0, doctor said early nephropathy.now suffering from tooth abscess given clinda300bd, is it ok?

Falling creatinine: If i read your question correctly, your creatinine (c) fell from 3.0 to 1.9 mg/dl in 20 days. As your c fell, it seems as if you had acute kidney failure, not "early nephropathy". You can take Clindamycin without a dose reduction if you have kidney disease as it is not cleared by the kidneys. Speak to your doctor about the cause of your "nephropathy". Good luck.