Wearable patches are known as smart patches or electronic skin. These are thin, small, and flexible in nature, and are used for disease monitoring, drug delivery, and diagnosis. Wearable patches help to maintain health and wellbeing in elderly patients suffering from chronic conditions such as diabetes and others. Presently, the market of wearable technologies is growing, owing to increasing research and development activities for development of wearable patch carried out by key players operating in the market. Wearable patches can be worn or stuck to the skin, or patch's such as scopolamine patches and transdermal patch are directly attached to the affected body part for disease monitoring. For instance, a nicotine path is a transdermal patch, which releases nicotine into the body, and is used in nicotine replacement therapy (NRT).