Abstrack -Skin disease is one kind of the most common diseases affecting humans. This happens because skin is the outermost part of body, so germs, bacteria and dirt easily stick to the skin and cause disease. However, finding out the type of skin disease that is being suffered and how to handle it is not easy, while consulting or seeing a specialist doctor or dermatologist certainly requires a large amount of money. In addition, limited time and space also make it difficult for people with skin diseases to consult or seek treatment. Therefore, a mobile application is designed to help identify a disease using forward chaining method. Diseases that can be identified on this application are eczema, scabies, psoriasis and tinea. In addition to identifying diseases, this application also provides alternative treatments so that the users can do the alternative treatments to surmount the illness. Before this research was conducted, the author had a discussion with a skin specialist, who is a dermatologist and genital at Awal Bross Hospital Panam Pekanbaru. This research produces a mobile application that helps users identify skin diseases and provides alternative treatments so that users can save money, time and space. The accuracy value of the result of this research is 90%, precision is 100% and specificity is 100%.