This project presents the design process of an innovative eHealth solution targeted to improve medication adherence for asthma patients with low health literacy. The symptoms of asthma, such as shortness of breath, can lead to a severe reduction in the quality of life. To reduce the severity of these symptoms, it is important that a patient is adherent to their medication. However, people with a low health literacy experience certain barriers, such as lack of capabilities to understand and limited awareness about the effect of the medication. These barriers result in poor medication adherence. The Turbuscope is an intervention that aims at improving the awareness about the effect of the maintenance medication. The awareness is created by providing a reflective self-monitoring experience in which data is interpreted about the adherence and the asthma state. The end product is a finalized concept that embodies design guidelines and recommendations for future designs within the field of improving medication adherence for asthma patients with low health literacy.