Whooping cough is usually triggered by cold temperatures. Hence, at night the bouts of whooping cough may become worse. While coughing, the patient may turn blue, experience profuse sweating, and temporarily stop breathing. Humidifiers and fluids may offer some relief. Consult your doctor to discuss medication for temporary relief of symptoms.Whooping cough is usually triggered by cold temperatures. Hence, at night the bouts of whooping cough may become worse. While coughing, the patient may turn blue, experience profuse sweating, and temporarily stop breathing. Humidifiers and fluids may offer some relief. Consult your doctor to discuss medication for temporary relief of symptoms.