Apply Baby powder or body powder where you are chafing You can
also use body glide where you are chafing.
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A chafing plate or chafing dish is a shallow pan or dish used to
keep food warm at a table or on a buffet.
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In some uses, yes, although in the compound noun chafing dish, it is an adjunct. Chafing is the present participle of the verb (to chafe) and can be an adjective or a noun (gerund).
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In running chafing refers to the irritation of the skin caused
by repetitive friction. Many women experience chafing if they are
not wearing the proper bra when running.