The first two wave types, P and S , are called body waves because they travel or propagate through the body of Earth. The latter two are called surface waves they the travel along Earth's surface and their amplitude decreases with depth into Earth.
The causes are many and can have bacterial infection, seborrheic dermatitis of the face or even a scalp, rosacea, allergies, and in very rare cases, the lice. If the itchy eyelids is brought about by seborrheic dermatitis then you may develop dry, flakey patches of skin on the eyelid.
Â» Review Causes of Eyelid burning sensation: Causes | Symptom Checker Â» Causes of Eyelid burning sensation: The following medical conditions are some of the possible causes of Eyelid burning sensation. There are likely to be other possible causes, so ask your doctor about your symptoms. Diabetes; Peripheral Neuropathy; Sun burn; Chemical burn; Heat burn