I was bitten by something on the right calf a couple of day ago (not sure what). However, I am in terrible pain. There is a huge swollen red bump, and it's not really itchy but the pain is terrible, to the touch or if I press my leg to the back of a chair ect... Also, if I have been sitting for a while and get up to walk, it even hurts to walk. Any suggestions as too what I can do for now, (Benadryl ect....) I can't get into see my doctor until Monday! Thanks.