hello welcome to health care magic forum..
to cure headache its important to remove maintiaining causes and aggravating factors.. in your case stress
n strain due to overload of work are the main cause. and the aggravating factors are smoking
destress yourself.. take adequate rest and sleep..
keep yourself hydrated with juices fruits and salads..
deep breathing exercises like pranayam also help. or regular exercise helps in the release of toxins n stress..
homoepathic medicine will be a lot beneficial in curing..
wish you good health..