Chemical burn 😩

This is so embarrassing! Can anyone help me! I am 36 weeks pregnant and thought last night I'd have a little pamper evening. Bath, face mask, shave my legs etc. I always use veet for the area between my bum cheeks and it's always been fine. Well last night when I put it on it instantly burned (so stupid, I shouldn't have done it knowing your skin is so much more sensitive when pregnant) I instantly washed it off. Now it is so red and sore and I don't know what to do to help it heal. I have slapped loads of sudocrem on it (the white you can see) in hopes it will ease the stinging and help it heal. I can't believe this. Due to give birth and going to have a big scabby bum 🤦‍♀️ such an idiot.