I have been having itchy face and parts of my body and have used calamine as well as face cream, vaseline petroleum jelly and allergex since monday. what coi be the cause and whats the remedy?

Seek help: Sounds as if you could have atopic dermatitis, or some other very treatable condition. Rashes and skin abnormalities are crucial to be visualized—preferably in person— but “virtually,” if that isn’t possible, for an accurate diagnosis. Rarely, in difficult cases, a biopsy might be needed. Start with you primary care physician. Good luck and stay safe!