Possible Puppps?

Ok, so 2 days ago I started having this insane itch on my belly button, so at first I scratch it but the itch never went away. I cleaned it and ot still didnt go away..it hot worse! The itch spread all across the front of my stomach! I have hive like bumps along every stretch mark on my belly..now its starting to spread to other parts that have stretch marks. Like my sides, and crevices going toward my upper thigh. 😔 I have an appt with the doc in 3 days..but in the mean time. HAS ANYONE EXPERIENCED THIS!? If you have what remedy can I use to help meanwhile? Any advice is welcomed!