DUP MP Carla Lockhart has hit out at online abuse from "faceless trolls" over her appearance.
Other politicians also condemned the "hateful" social media comments directed at Ms Lockhart after she took part in a TV programme discussing bonfires and parading issues.
The Upper Bann MP said she would continue to represent her community despite such personal attacks.
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Ms Lockhart tweeted: "Predictably, when I stand up for my community, faceless trolls use it as their daily reason to abuse me.
"Not on my politics, which they may not agree with, but on their perception of how I look.
"When you do down that route, you’ve lost your argument, and I will still be here."
Ulster Unionist deputy leader Robbie Butler also took to Twitter to condemn the "abuse and hateful trolling" faced by Ms Lockhart and other female politicians.
The Lagan Valley MLA said: "The abuse and hateful trolling that Carla Lockhart and other female politicians get on this platform, and other areas of life, is absolutely sick."
Mr Butler used two balloon emojis to describe those engaging in the online abuse, and praised Ms Lockhart for "not giving in" to such "small minded" invididuals.
He added: "When they can't play the ball, they should leave the pitch."
DUP Lagan Valley MLA Emma Little-Pengelly tweeted: "The level of toxic, nasty abuse Carla Lockhart MP gets on this forum is beyond repulsive.
"It's a terrible reflection of all who partake in it. Disagree with politics all you like, but to descend into the mocking, personal, degrading and demeaning shames all who take part."
Ms Lockhart had been speaking on BBC's Sunday Politics programme about the 25th anniversary of the Drumcree parading dispute in Portadown, Co Armagh.
Members of the Orange Order staged their annual protest on Sunday. The Parades Commission again refused permission for the return route to proceed along the mainly nationalist Garvaghy Road, a ruling maintained since 1998.
The stand-off made headlines in the 1990s when nationalist residents of the Garvaghy Road resolutely opposed the parade passing through their area.
There were violent clashes for several summers and political tensions that resulted in a major security operation.
Ms Lockhart said it was a "very sad day that 25 years on from this dispute we're still in the same situation where Orange feet are not welcome on a particular stretch of road".
She said: "We can't move on if there is no respect or tolerance for a 10-minute walk down a route which has changed enormously over the last 25 years."
However, SDLP MP Claire Hanna said the dispute is in the past.
"I think you might as well ask to refight the Battle of the Boyne, that is a fight that is in the past," she said.
The South Belfast MP added: "I think the DUP need to get their heads around the world we are living in today, and to offer leadership around the world we are living in today."
Ms Lockhart also told Sunday Politics she did not want to see bonfires with "effigies or flags on them".
It followed the placing of an Irish flag and a picture of Taoiseach Leo Varadkar on a loyalist bonfire set alight at the weekend in Moygashel, Co Tyrone.
Police are investigating the incident as a "hate crime".
Ms Lockhart said: "I want to see bonfires that represent the historic nature of them when they were lit to welcome King William to Northern Ireland."
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