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.
Common Cold. A viral infection of the nose is the most common cause. The nasal congestion also blocks the ear tube eustachian tube. The ear tube normally keeps air in the middle ear. Ear Infection. Middle ear pus can also cause muffled hearing on that side. This commonly happens with an ear infection. Middle Ear Fluid.