Is it necessary to paint the house, inside and out, after the death of a family member, on the basis that the deceased screams a scream that causes his blood to splatter on the walls of the house when he departs?

What has been mentioned about the obligation of this matter is not correct. Its performance is an innovation (bid'ah) and is not permissible, because it was not known from the Messenger of Allah, peace and blessings be upon him, nor his companions, despite the high number of deaths in their era and their adherence to the required etiquettes when death occurred.