The exact cause of lichen planus is unknown. It may be related to an allergic or immune reaction. Risks for the condition include: Exposure to medicines, dyes, and other chemicals (including gold, antibiotics, arsenic, iodides, chloroquine, quinacrine, quinide, phenothiazines, and diuretics)
Closest Airport to Killeen, TX. The closest airport is Robert Gray Army Air Field Airport (GRK). Distance from Robert Gray Army Air Field Airport to Killeen is 11,1 kilometers (6,9 miles).
Killeen is located in western Bell County at 31Â°6â²20â³N 97Â°43â²36â³W / 31.10556Â°N 97.72667Â°W / 31.10556; -97.72667 (31.105591, â97.726586). It is bordered to the north by Fort Hood and to the east by Harker Heights. Killeen is 16 miles (26 km) west of Belton, the county seat and nearest access to Interstate 35.