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.
Some of the common causes of Ear Fullness are: Chronic ear infections; Chronic tonsillitis; Common cold; Influenza; Mastoiditis; Otitis externa; Otitis media; Upper Respiratory Infection. Some of the other causes of Ear Fullness are: Acoustic neuroma, which is a condition in which there is a benign tumor of the nerve which connects the inner ear to the brain