St. Agatha is the patroness of rape victims, torture victims, martyrs, nurses, and against breast cancer. She is one of the seven women, besides the Virgin Mary, mentioned by name in the Roman Canon of the Mass. Her feast day is February 5th.
O glorious St Agatha, who remained faithful to Our Lord even unto death, intercede for me as thou dost rejoice in the reward of thy virtues.
Cast a glance of pity on (me /mention the person afflicted with cancer or other serious breast ailment) and grant my petition, if such be the will of God.
Make my/her troubles into thine own.
Plead for the grace yearned for ardently, and for a blessing that may strengthen me/her during life, so to assist me/her to lead a faithful life, so that, one day, I/she may join you in eternity to behold the Source of Eternal Joy.
(Our Father, Hail Mary, Glory Be)