There is a mantra for removing many many kind of evil curses and spells. This mantra is called the "Avalokitesvara Great Compassionate Mantra (Dharani)". This mantra has passed down for more than a thousand years. It's origin is beyond a thousand years; it's origin is many many eons before this eon of Kali. Anyway, here is excerpts about the mantra:
Excerpts from The Dharani Sutra
English translation by the Buddhist Text Translation Society, Dharma Realm Buddhist University, USA
If humans and gods recite and hold the phrases of the Great Compassion Mantra, then when they approach the end of life, all the Buddhas of the ten directions will come to take them by the hand to rebirth in whatever Buddhaland they wish, according to their desire.
Should any living beings who recites and holds the spiritual mantra of Great Compassion fall into the three evil paths, I vow not to realise the right enlightenment. Should any living being who recites and holds the spiritual mantra of Great Compassion not be reborn in any Buddhaland, I vow not to realise the right enlightenment. Should any living being who recites and holds the spiritual mantra of Great Compassion not obtain unlimited samadhis and eloquence, I vow not to realise the right enlightenment. Should any living being who recites and holds the spiritual mantra of Great Compassion not obtain the fruits of whatever is sought in this very life, then he cannot have been making proper use of the Dharani of the Great Compassion Heart.
People and gods who recite and hold the Great Compassion Mantra will obtain fifteen kinds of good birth and will not suffer fifteen kinds of bad death.
The bad deaths are: 1. They will not die of starvation or privation.
2. They will not die from having been yoked, imprisoned, caned or otherwise beaten.
3. They will not die at the hands of hostile enemies.
4. They will not be killed in military battle.
5. They will not be killed by tigers, wolves, or other evil beasts.
6. They will not die from the venom of poisonous snakes, black serpents, or scorpions.
7. They will not drown or be burned to death.
8. They will not be poisoned to death.
9. They will not die as a result of sorcery.
10. They will not die of madness or insanity.
11. They will not be killed by landslides or falling trees.
12. They will not die of nightmares sent by evil people.
13. They will not be killed by deviant spirits or evil ghosts.
14. They will not die of evil illnesses which bind the body.
15. They will not commit suicide.
Those who recite and hold the spiritual Mantra of Great Compassion will not suffer any of these fifteen kinds of bad death and will obtain the following fifteen kinds of good birth: 1. Their place of birth will always have a good king.
2. They will always be born in a good country.
3. They will always be born at a good time.
4. They will always meet good friends.
5. The organs of their body will always be complete.
6. Their heart will be pure and full in the way.
7. They will not violate the prohibitive precepts.
8. Their family will be kind and harmonious.
9. They will always have the necessary wealth and goods in abundance.
10. They will always obtain the respect and help of others.
11. Their riches will not be plundered.
12. They will obtain everything they seek.
13. Dragons, gods, and good spirits will always protect them.
14. In the place where they are born they will see the Buddha and hear the Dharma.
15. They will awaken to the profound meaning of that Proper Dharma which they hear.
Those who recite and hold the Great Compassion Mantra will obtain these fifteen kinds of good birth. All gods and people should constantly recite and hold it, without carelessness.