Many people often ask during consultation whether the deviated septum is treated with laser, microwave or plasma, which is ridiculous to hear. What is laser, what is microwave, and what is plasma, and how can they be used to treat a deviated septum? It is puzzling where these ridiculous claims come from. Deviated septum is an abnormal bone and cartilage form, which cannot be corrected by laser, microwave or plasma. Such claims are purely subjective and have no scientific basis, so do not make false claims.