How to avoid dry socket after WT removal

I have extracted my upper WT yesterday, it's been 24 hours now.I did bleed for 7 hours, kept changing the gauzes. I didn't brush,rinse yet. I had only soft foods.Today whenever I drink and swallow water, I feel like blood oozing from extraction site. I am taking antibiotics and ibprufen. I have been prescribed mouth rinse, I didn't use it yet. Told to use next day.I saw extraction site today, it looks like black reddish dark color. Is it normal?  I already had low jaw pain under ear, ear pain and swelling before this extraction. All dentist said extraction might help and did this. There are two scenarios going on. Either tooth#46 crack or upper WT issue. So they told me to try extraction first .I still have ear and low jaw pain from yesterday and it didn't reduce at all. Along with that , having the extraction pain. I am having pain inside the ear, like burning. Is it indicate dry socket? I have pain under the ear.it was there before extraction. I have pain in front of ear. dry socket?