The invention is directed to methods for treating blepharitis. The invention is further directed to reducing inflammation associated with blepharitis. The invention is further directed to methods for treating blepharitis and/or reducing inflammation associated with blepharitis by administering to a subject suffering from such conditions, or at risk of developing such conditions, novel cellular factor-containing solution compositions (referred to herein as “CFS” compositions), including novel sustained-release cellular factor-containing solution compositions (referred to herein as “SR-CFS” compositions).