Aspirin can lower prostaglandin levels (a measure of inflammation) but at too high a dose it can disrupt the body’s balance. We found, there is a small therapeutic window in which aspirin is anti-inflammatory: 6 mg per dose. Below this level, the drug would not have a significant affect and above it, it becomes inflammatory. For comparison, a baby aspirin contains 81 mg. Aspirin is known to damage the stomach lining in higher doses. This is probably why it also damages the respiratory lining in higher doses.