"The Labour Party uses other people's pain and suffering to promote their party and you are one of those victims."
Another user posted a racist comment following Allan's diagnosis, saying Māori women would "assist their cervical cancer issues by abandoning promiscuity rates and developing real self-respect and personal values".
But for every hateful comment, Allan had been flooded with positive ones, sending her love and admiring her strength.
She received widespread support after revealing her cancer battle.
Māori women are more than twice as likely to develop cervical cancer than Pākehā - and three times more likely to die from it, a 2019 study led by Victoria University of Wellington's Te Tātai Hauora o Hine Centre for Women's Health Research detailed.
Allan used her diagnosis to urge other wāhine to get smear tests, saying the late Talei Morrison's rallying calls for women, particularly Māori women, to get tested regularly was the push she needed to get it done previously.
But Allan said that as time passed and work piled on, going to the doctor beyond emergencies went down the priority list as she took a "see no evil, hear no evil" approach to that part of her body.
She said she'd been asked by people after her diagnosis: "Is there anything I can do?".
"My answer now is yes. Please, please, please - encourage your sisters, your mothers, your daughters, your friends - please #SmearYourMea - it may save your life - and we need you right here."