I don't think doing more than a hundred good deeds may drive away ghosts. The most direct way is to use salt and magic.

Buddhism does not advocate killing, even ghosts and sentient beings will cross over to deal with it.

The so-called "immortals" or "spirits" that we meet ourselves or deliberately invite by various methods (the most common ones are the five immortals in Northeast China, namely, Hu Xianhu, Grey Fairy Mouse, Huang Xian Yellow weasel, White Fairy Hedgehog and Liu Xian Snake) are all one of the six sentient beings. Because our world is called the world of nuns, the so-called "nuns" means "forbearance", which means "forbearance". In the words of Buddhism, we have had a hard time, but our spiritual wisdom is still there, which is much more bitter than the hungry ghost in hell. We also have happiness, but it is much worse than the happiness in the fairyland (heaven) and Asura Road, which we don't know and don't want to practice, so this environment is the most suitable for practice, so it is the best carrier for a person. The so-called "no desire, no desire, no reincarnation, no love and no wife" is such a situation.

These spirits, such as Tangkouxian, Baoguxian, Chumaxian, etc. , from all places in the Six Roads, some fell from Heaven and Asura Road, which were pure spirits, and some escaped from Hell and Hungry Ghost Road, which were also pure spirits; There are also animals (such as white snakes) from the side door or plants (such as ginseng baby and gourd baby) that accept the beauty of heaven and earth and the essence of the sun and the moon. Their bodies will be destroyed, such as lightning robbery, natural disaster, and so on. So no matter where they come from, they have no bodies, so their practice can't achieve the maximum benefit, so they should find bodies to practice for them, or use small magical powers to attract incense. As for those spiritual bodies looking for new bodies, those with high skills directly drive people's souls out and forcibly live in them (this is called "possession", a special term), while those with low skills possess themselves, gain positive energy through doing good deeds and win people's worship; Or do bad things and get life energy through improper means, so the situation you mentioned above appeared. They can't be called "immortals", they can only be regarded as evil spirits (things that do bad things) or righteous spirits (things that do good things). Therefore, the so-called "asking God is easier than sending God" is suggested to be ignored. Buddhism is orthodoxy, which is either evil or deviant.

If you find these things on you, you can send them away by reciting the Tripitaka Sutra for one to seven times or the Great Compassion Mantra for 2 1 times, that is, with the blessing of Buddha and Bodhisattva, you can cross the pure land of Buddhism (if you refuse to leave, it shows that you are more greedy for the world, and you can send them away by increasing the number and intensity of reciting). It not only did a good thing, but also thanked you very much for it!