Multifunctional silica mesoporous nanoparticles for treating inflammatory- related diseases Post-traumatic stress disorder (PTSD) is a long-lasting debilitating condition that impacts a wide range of people across the world, and it is characterized by different kind of symptoms, like re-experiencing the traumatic event, avoidance of trauma-related stimuli, negative thoughts or emotions associated with the traumatic event, general changes in mood and cognition, and hyperarousal symptoms. In addition to the severe psychological issues, a lot of studies have discovered a connection between PTSD and an increased risk of serious physical diseases, which are all known to have an inflammatory component. This inflammatory component is also found in skin infection since the immune system fights it by stimulating inflammation in both the injured tissue and the body.