Strepsils strawberry sugar free lozenges contains two antiseptic ingredients for use in infections these ingredients are both mild antiseptics which kill the bacteria associated with mouth and throat infections the action of sucking the lozenge allows the active ingredients to work in the area of the discomfort and also helps lubricate and soothe the painful area this helps relieve the soreness and discomfort of mouth and throat infectionsas an alternative doctors can also prescribe medi