Abstract: A cap for a nasal spray apparatus, the cap including a spray dispensing mechanism and further including a base sealingly mountable on a container of liquid substance to be dispensed; an intermediate section arranged for reciprocating movement relative to the base the intermediate section including the spray dispensing mechanism and having a spray dispensing passage; a cover-section having a depressible flexible portion, coupled to the intermediate-section; and a Light Emitting Diode (LED) connected to a power source through an electric circuit, the LED mounted adjacent the spray dispensing passage so as to be inserted into a nostril therewith; wherein the depressible flexible portion is arranged and configured to cause closure of the electric circuit for activating the LED and to actuate the spray dispensing mechanism, to provide both illumination and spray of liquid substance into the nostril.