Is my jellyfish rash suppose to look like this?

Lizzeth

At first

I got stung in Tybee island I have no idea what jellyfish it is but I applied vinegar and took a wash with hot water. On the 6th until yesterday it got really REALLY itchy looks worse than it did and it looks like it’s spreading I can’t find good information online to tell me if it’s normal or not 😰

Now ^