I used/burned mosquito coil alot almost 10 days. 1, the smoke which is from the coil is sticked on the clothes then I sat on sofa and everywhere, is that sticked smoke harmful?.. 2, those ash which fallen down from the coil are dangerous when goes inside mouth?? Because there is a 2yrs old kid in my house walking around and he put his hand in his mouth maybe he touch those ashes and put inside his hand mouth, I'm always worry about this.