Some deliverance ministries have also suggested to anoint all items brought into the home with blessed olive oil, in an effort to cleanse all evil from it. Personally, our family has found that this can be a dangerous thing to do when it comes to anointing actual idols. (https://dreamsofdunamis.wordpress.com/2012/02/16/three-idol-encased-demons/) It also has not worked with other items that were cursed. For example, I purchased a new pillow from a store, and found it was giving me rashes and itchiness that made sleep difficult. We examined the pillow (my usual brand,) for any physical reasons for the reactions, but found nothing. Finally in prayer, the Lord told me that it had been previously purchased by a New Age Wiccan, and because it had been in her home for a few days, it was now considered unclean for me as a believer. Anointing this pillow with the blessed olive oil made no difference at all. The itchiness and rashes remained. When I exchanged it at the store for another one, (which the Lord told me to do,) the new one posed no problems at all. The itchiness and rashes were gone within 24 hours. I couldn’t just bless and keep the item in question. I had to remove it from my home.