I’ve lived in the worst dirty conditions.
because I have lived like.
I know energy is energy plus I can attest that the things that are dirty ancient old have a Darkness an energy to it a powerful
source of energy.
Compared to a rich mans house the conditions I have lived in felt like power itself I now am drawn to things that are old and dirty
What do you think a virus is like coronavirus it’s Dirty a sick person has a dirty virus inside of them you wanna know what power feels like go get A sickness called the cold or the FLU the things that are dirty have power to them
It is even proven that clean people are more likely to get sick and that is because they are messing with a powerful source of energy called dirtiness and that dirt that some members think isn’t powerful is powerful sickness is powerful the energy of the abused is powerful it’s a negative force
A person that is depressed he feels a sense of power inside of him everything is energy that depression is a powerful energy source
So next time somebody says that things that are dirty are not a powerful energy source remember what I said about viruses being dirty and powerful
Yes feces are excellent for Belphegor workings for example than urine is okay too for several Qliphothic entities, pus it’s mainly for bane like putting in the puppets or on pictures of targets
I know how to wash my Face I do it every time I take a shower I don’t understand why you would think you know I don’t know how to wash my Face but okay it’s whatever have a good night fella
Ironically, there is an interesting case at work between me and one of my roommates (who is also into magic). When the crop at work piles up and we get worked up to the point where we injure ourselves, the problems seem to end. We jokingly call it our sacrifice to the machine gods. In reality, it is likely we are tapping into the raw emotional release from the injury that is being directed to the goal, which is to solve the problems.
But to answer the question, yes blood from an accident such as the example above can be utilized for magic. It is a way to use blood magic discreetly in public (not that I purposely sought after it. More or less using what the situation provides).
As for blood mixed with pus, I don’t really see it being useful for offerings (although could be wrong) but perhaps for curses revolving around disease or other forms of decay.
The Anaxeiraz demons loved the blood after OPs and some of them even wanted to do a pact through the blood soaked bandages. It seems blood is important for the Qliphothic entities in any form
not literal nor the metaphorical kind often talked about here.
I don’t understand why you would think you know I don’t know how to wash my Face but okay 
it’s whatever have a good night fella