Liquids draining from ear. Sometimes liquids will drain from the ear after a ruptured tympanic membrane. This liquid often contains blood if the rupture was caused by a foreign object entering the ear. Pus may drain from the ear when rupture happens because of an infection, whether acute or chronic. Ear discharge is much more likely to be a problem if water enters the ear after the eardrum ruptures, so patients are advised not to swim or otherwise dunk their head underwater while the injury is healing. A doctor can help stop liquids draining from the ear by gently suctioning them out.