No that Betta unfortunately passed away before the medication you suggested arrived, the aquarium salt I had put in must have not been enough for him. When thinking about what might have happened more is I’m guessing a food pellet got stuck in the intake of the filter and he tried to get it really damaging his mouth in the process. I put a sponge over the intake now, to prevent this from happening again.
I picked up another one from the store, he seems happy and healthy but his fins seem a bit frayed along the edges. I’m not sure if it is fin rot or not but I am just wondering if it would be best to wait and see how he does in the 5 gallon tank I have for him or attempt to treat it right away. I was thinking maybe just being out of the little cup they kept him in and into a bigger tank would be enough for it to improve.