Do I have an ingrown toenail?

My toe has been like this for a long time. It is red and swollen along the side of the toenail, and very tender. Also, yellowish pus keeps coing out of it. I looked up pictures of an ingrown toenail and they looked really nasty so if I do have one I'm thinking it's only a minor one, and my mom agrees. I've been soaking it lately with hot water and epsom salt, and I trimmed my toenail straight across. I am also using this pain reliever for ingrown toenails that is supposed to just make it stop hurting long enought for me to get a piece of cotton under the nail, because right now it hurts too much to do that. Am I doing the right thing? Do I need to see a doctor, or will what I'm doing be enough?