Wireless body area network or body area sensor network is wearable device in human body. In online healthcare, transmitting of medical data from sensor node to destination, medical device is used with the member function. However, WBAN has faced many security issues and challenges when transmitting the data. Existing ECC secure key distribution methods are implemented, using this method the time is consumed, efficiency and security of data was discussed. ECC scheme implements for secure key distribution and data exchange. The proposed collaborative neighbour based method is used. Overall, the proposed method proves a better security in healthcare devices. Collaborative neighbour selection and time taken on packet forwarding from one point to another identify the presence of data being appended in the framework. The proposed framework includes enhancement to security and efficiency by forwarding the node information and performing the verification procedure based on the received packet to filter the false data. Extensive experiments and simulation results indicate that, in terms of bandwidth efficiency, packet transmission, network security and processing time, performs favourably compared to existing ECC mechanisms in wireless body area sensor network. Copyright © 2018 Inderscience Enterprises Ltd.