Brown Recluse Spider Bite?

I got bit by a brown recluse spider yesterday morning around 8 a.m. I know 100% it is one. I kept it and went to the E.R. right when it happened. The nurse checked my vitals and she looked at the bite. She examined the spider cause i carried it with me in a ziplock baggie. She said it was a brown recluse. They gave me a script for Benadryl and a steroid pack. Ive been taking Benadryl and antibiotics that i just got for a couple of days ago for a sinus infection. So im continuing to take them. I am putting a paste of baking soda and epsom salt on it every few hours and applying aloe vera gel for itching and taking aleve for pain. I am not really seeing too much of a change in the bite. It is red, about the size of a quarter and where the "fang marks" are is about the size of a pin point and looks kind of bruised. Does this mean it is just a mild bite? Because the pictures i have been looking at in severe cases by the 24 hour mark the bite is already trying to open up and this is not the case in my situation. I am just wondering if i should expect the necrosis anytime soon. I dont know the time frame of this kind of thing..and im a bit scared of what might happen. Any help would be muchly appreciated.