Anyone else with a swollen 😺?

Almost 26 weeks and for the past week or so I have had the worst rash/swelling/rawness/itchiness on the skin around my vaginal opening. It’s soooo bad and scaring me. I don’t have any other symptoms and if I skip a shower the skin gets extremely itchy.

I’ve been using my toddlers diaper rash cream and it doesn’t seem to help. I think maybe it’s from my work pants cause they aren’t breathable at all & it gets moist & ahhhh. So uncomfortable! Help! I don’t wear underwear or pmts at all to bed to try to let her air out but nothing is helping! Should I go to the doc?