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Doctors Medicines MCQs Q&A

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Cheap vinegar is good, but you need to give it a bit of time, or for a more powerful solution, you can get caustic soda (sodium hypochlorite) or boracic acid from the supermarket or hardware store. The cheap brand works just as well as the expensive one. Be careful and do not get any on your skin, it burns. Dilute it with water.

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