| Lee et al. (2001) | 18 | TE05, GB15 TE06, SI05 GB38, KI02 | - | Otitis media condition improved |
| Park et al. (2001) | Experimental 11 Control 11 | - | Experimental : Hyunggyeyungyo-tang (Kami)Control : Antibiotics | IgG1 was significantly high in the experimental group. IgG2, IgG3, and IgG4 were also high. |
| Kim et al. (2002) | Experimental 36 Control 48 | - | Experimental : Hyunggyeyungyo-tang (Kami)Control : Antibiotics | IL-8 level was significantly lower in the experimental group. TGF-β1 level was also slightly lower. |
| Do et al. (2001) | Experimental 11 Control 11(Middle Ear Fluid)Experimental 5 Control 5 (Adenoid) | - | Experimental : Hyunggyeyungyo-tang (Kami)Control : Antibiotics | Tryptase expression was less, and SOD expression was more in the experimental group. |
| Yang et al. (2001) | Experimental 40 Control 50 | - | Experimental : Hyunggyeyungyo-tang (Kami)Control : Antibiotics | Improvements were observed in pneumatic otoscopy, tympanogram, hearing test, and temporal bone radiography of the experimental group.. |