Feeling a burning sensation after being oiled with Urjas is not unheard of. It could be because your skin is sensitive, or if you have any allergies to the components of the oil causing the reaction. Your skin reacting is a sign. To help with this, immediately cease using the oil, wash the area with a little gentle soap and water, and apply a soothing moisturizer or aloe vera gel. If the sensation persists, switch to a different product. 

Using a stranger's spoon won't instantly cause unusual patterns to appear on your skin. However, it is possible to develop skin issues like infections or rashes. Your skin may show irritation through symptoms such as redness, itching, or swelling. To prevent this, it's best to always use your own spoon and sanitize it properly. If irritation does occur, applying a soothing skincare lotion can help calm the skin.

Vitiligo is a condition where white patches develop on the skin and face. It occurs when cells that produce color for our skin die. Common signs include white spots appearing especially in areas exposed to sun. Treatment options comprise using topical steroids, light therapy, and skin grafts. It is important to wear sunscreen to protect affected parts. 

You may have bilateral facial swelling, meaning both sides of your face are swollen. This could be caused by infections, allergies, or dental issues. It's important to see a physician as soon as possible to identify the cause and receive appropriate treatment. In the meantime, you can apply ice packs to reduce the swelling and avoid eating foods high in salt and spices.