Can I use vaseline on the face? For super dry skin it's itching.

Some people like to use it at night at the end of their skincare routine to lock everything in, this is often called "slugging." You will still need a moisturizer because it doesn't moisturize or hydrate. Because it seals everything in, it can make the effect of active ingredients stronger, which could be too much for your skin.

thank you so much for all this information. sadly i have no moisturizer right now.

I think if you use it short term , it should be ok.

I think it is okay to put it on face, but never try it for myself before since i lived in very humid country

I guess if your skin is flaky or cracking then its fine. If the dryness is not severe then just use moisturizer or use moisturizing facial mask.