What Causes Burning Sensation Under The Eyes After Septoplasty?

Hello, i just got a rhino-septoplastic surgery two days ago. I am having quite some pain in my nasal cavity and a burning sensation in my eyes which makes them tear up. I also have little bruising under my eyes and my skin around the nose is quite puffy alongside some numbness in my upper jaw. I currently have my nose clogged with splints and is covered in a thermoplastic screen. I just wanted to ask a few things to be on the safe side : 1. How long will this pain last? 2. Will it be painful to remove the splints? 3. Is bleeding for up to 3 days normal? 4. How much time does it take for the puffiness and bruises to fade away? Thanks so much and your answers are highly appreciated :)