Useful in the beginning of hay-fever, with involvement of Eustachian tube.
Ear.–Hardness of hearing; tinnitus. Eustachian catarrh (Hydr; Merc dulc).
Relationship.–Compare: in hay-fever: Phleum pratense–Timothy grass–(Hay-fever with asthma; watery coryza, itching of nose and eyes; frequent sneezing, dyspnœa. Use 6-30 potency. Rabe). Succin acid; Sabad; Euph; Psor; Kali hyd; Naphth.