Use a foam roller and/or stretch.
Always change gloves if the gloves get ripped, torn, or contaminated. Contamination can occur after using the bathroom, smoking, coughing, sneezing, and in between preparing raw and cooked foods. Food worker hands must be washed thoroughly and be cleaned before wearing new gloves.
No it cannot. All it will do is build muscle which= 0 flexibility and also the muscle you build will eventually turn to fat if you stop working out.