Sometimes God allows for a relative or a fellow worker to cause us problems in order to exercise our patience and humbleness; however, instead of being grateful for the chance God gives us, we react and refuse to be cured. It is like refusing to pay the doctor who is giving us a shot when we are ill.
God does not want us, His children, to be pestered. He gives us temptations and hardships, in order to become perfect. Temptations will cease to exist in our life, when we reach the level of perfection.
Christians ought to love afflictions and not try to get rid of them; afflictions are necessary means leading to our perfection.