Hello and welcome to HCM.
Thank you for your query.
The possible conditions that could cause a presentation similar to yours are:
-A skin condition
-Sexually transmitted diseases
and many more.
In my opinion, the best option as of now would be to visit a doctor for a physical examination at the earliest. In the meantime, please do not strain while passing stool. Keep the area dry and clean. Wear clean and comfortable clothing, and most importantly, drink plenty of water.
I hope I have succeeded in providing the information you were looking for. Please feel free to write back to me for any further clarifications. I would gladly help you.