Can I use petroleum jelly on my face?

I had rash on my face two days ago because I ate bread and I am allergic to gluten food. I used selsun blue on that same day to treat it and now it's healing and it's really dry. Can I use this cocoa butter petroleum jelly to moisturize it? I'm going out with my friends today and I don't want them... show more I had rash on my face two days ago because I ate bread and I am allergic to gluten food. I used selsun blue on that same day to treat it and now it's healing and it's really dry. Can I use this cocoa butter petroleum jelly to moisturize it? I'm going out with my friends today and I don't want them to see my face flaking because that would be so embarrassing. It's flaking because it's healing.
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