Strepsils Plus Throat Spray 20ml Aust R 55908 Strepsils Plus Anaesthetic's dual formula contains a local anaesthetic to numb the throat while the two antibacterial agents help kill the bacteria which can cause sore throats and mouth infections. Features Fast relief for sore throats Numbs the throat Dual action Strepsils Plus Anaesthetic Throat Spray has been formulated to give effective and rapid relief from the symptoms of painful and inflamed sore throats, mouth and dental ulcers. Its dual action formula contains a local anaesthetic to numb the throat while the two antibacterial agents help kill the bacteria which can cause sore throats and mouth infections. The efficacy of an antibacterial agent in lozenges in reducing the severity or duration of throat infections has not been clinically established.