Abstract
As a local therapy of chronic suppurative tympanitis, washing with 50% solution of urea combined with sulfathiazol powder or its 10% solution was applied. Among 30 cases applied, 24 cases were cured, 5 cases were alleviated and 1 case showed no effect. Especially, striking effect was demonstrated in the case accompanied with granulation and odorous pus. Even with a long term application, this therapy caused no undesirable side reaction such as dermatitis. This therapy was found much cheaper compared with various antibiotic substances.
