Using olive oil to treat mange is unlikely to work. Mange needs proper medical intervention. A vet can determine the best course of action for a successful treatment.
In some cases, olive oil can be helpful. It can moisturize the affected area and reduce irritation. However, it might not be a standalone cure and should be used along with proper veterinary treatment.
Olive oil might not be very effective in killing mange. Mange is usually caused by parasites, and olive oil alone may not have the necessary properties to eliminate them.
The significance of the monster spray in the story is that it gives the characters, usually children, a sense of control over their fear. Instead of being helpless against the idea of monsters, they have a tool, the spray, to combat it.
I'm not sure what novel 'D-spray' refers to because the name might refer to different works. Can you provide more background information or context? This way, I can better answer your questions.
This scene usually appeared in period comedies, where two people competed to pee in the toilet. One moment, they would spray the toilet, and the next moment, they would pee again and again. This behavior is often seen as a funny way to make people laugh because people often encounter various difficulties and challenges in the toilet, such as not having enough space or not having the right facilities.
In a novel, such a scene might describe two people using various skills and strategies to win a game in the toilet. They may use various props and tools such as sprayers and urine pump to increase the difficulty and fun of the game.
This kind of scene was usually designed to increase the comedic effect and portray the character's image so that people would feel relaxed and happy when watching movies or TV dramas.