A temporary<unk>  occlusion can be inserted and tried first. These are made of collagen and are dissolvable. This is to ascertain that permanent ones will not cause excessive tearing (lacrimation). Permanent<unk> s are usually made of silicone. These are available in various sizes. For maximum effectiveness, the largest size that fits should be used. These are more effective than collagen plugs. They can sometimes become loose and fall out, in which case they can be replaced. Some plugs are made of thermally reactive material. Some of these are inserted into the punctum as a liquid, and then harden and conform to the individual's drainage system. Others start out rigid and become soft and flexible, adapting to the individual's<unk>  size after they are inserted.
Punctal plug
Anal plug
Nipple discharge
Perforated eardrum
Mucocele
Protruding ear
Lethal midline granuloma
Cimino fistula