Melania Trump on social media etiquette: 'Sometimes you have to fight back'

First lady Melania TrumpMelania TrumpTrump was rushed to White House bunker due to breach of temporary barricades: report The Memo: Nation nears a breaking point Washington archbishop criticizes Trump visit to Catholic shrine MORE said Wednesday that while she encourages young people to be kind on social media, sometimes there are exceptions.

"Sometimes you need to fight back, I'm sorry," she said, while answering questions during an event at Liberty University in Lynchburg, Va., that focused on the opioid epidemic.

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Trump's "Be Best" initiative focuses on opioid abuse, social media practices and general well-being. A priority of the campaign focuses on preventing cyberbullying.

She has faced criticism, in part, because of her husband's frequent use of Twitter to disparage and insult his critics.

On Wednesday, she said that when she started the "Be Best" campaign, she knew there would be some pushback, but she wanted to "do what is right." Trump added that her goal is for the next generation to be "respectful and kind."