A vehicle exhaust system includes an exhaust component having an outer surface and an inner surface that defines an internal exhaust component cavity. The system is provided with vehicle halting state detecting means for detecting a halted state in which the vehicle is halted or traveling at a very low speed, and illumination controlling means for turning off or dimming an auxiliary lamp when the halted state is continued for more than a prescribed time period. This provides a liquid crystal display in which transmittivity in a base section in which pixel electrodes are not disposed is almost equal to transmittivity in a non-selected section in which pixel electrodes are disposed. In deciding on which alerts are transmitted to which users, the enhanced alerts server may also consider any feedback provided by the users regarding previously delivered alerts. Such formulations are useful, for instance, for the treatment of collagenase destructive enzyme-dependent diseases, such as periodontal disease and acne, and acute and chronic inflammatory disease states, such as rosacea and arthritis. The fluid is under pressure in the fluid space.