Uti symptoms?

Hey y’all i just had a quick question about utis since this is my first time getting one, I told my doctor immediately the symptoms I was having when they started and they prescribed me antibiotics which I’ve been taking. They said the symptoms should improve within 24-48 hours and to contact them if the symptoms don’t subside. It’s been 3 days since it first started and I still feel a tiny burn when I’m peeing and am not sure if I should be worried about this or if this is normal. If anyone’s dealt with this before is that normal?