Disease on human skin is the most common infectious disease that occurs in people of all ages which can be caused by infection of Staphylococcus aureus, Staphylococcus epidermidis and Pseudomonas aeruginosa. Malay Lingga community use obat pahit potion made in Traditional Medicine Practioner (TMP) as an alternative in medicinal treatment of various diseases on human. The purpose of this re…