In chronic mucous and purulent discharges, lotions and injections of lime-water exert a most beneficial influence, as may be observed in chronic urethritis and in leucorrhoea, syphilitic or otherwise; in the former, a combination with mercurial oxides, such as the "black or yellow wash," is still more potent, and is in daily use for all forms of syphilitic ulceration.

The profuse nasal discharge, so usual in scarlatina and also mucopurulent otorrhoea, may be well and safely treated by washing out the affected parts with a tepid injection of milk and lime-water three or four times daily: over the affected ear a compress of lime-water, worn at night, is often advantageous. In chronic purulent ophthalmia a lotion containing chloride of lime is effective.