Skin is the soft outer tissue covering vertebrates. Other animal coverings, such as the arthropod exoskeleton have different developmental origin, structure and chemical composition. The adjective cutaneous means of the skin (from Latin cutis, skin).
Sorry to hear about your problem. The numbness in the ear can be due to variety of reasons. Some of them are. Diabetes. Peripheral neuropathy. Sensory nerve trauma. Ear infection. Cold. Cerebro vascular accident. Ear injury etc. As there is no history of trauma, so ear injury and sensory nerve trauma can be ruled out. Diabetes can be detected by undergoing a blood glucose test. This numbness can be caused by a preceding throat infection which can result in ear infection leading to numbness.
Infections are often the common cause of itching inside ear. Bacteria or a virus may find several ways to enter your ear and cause itching. Given below are some of the causes of this condition. Dryness. Often, dryness in the ear is what causes inner ear itching. Some people produce very less sebum or earwax. This little amount is not adequate to keep the ear canal well lubricated. As a result, dryness occurs inside the ear, which gives rise to flaky skin in the interior of the ear.