6 months old babies, due to the anatomical and immune characteristics of the upper respiratory tract, when the temperature changes it is easy to catch a cold, when there is a clear runny nose, there are several treatment methods: 1, natural treatment can be done by: (1) choose to use the method of hot compress on the nose area for conditioning: the effect is more obvious, to avoid the symptoms of the obvious external wind and cold; (2) help the baby clean up the nasal cavity: can see the nasal cavity The secretions can help the baby clean up and help reduce the symptoms. 2, the above methods do not work well or continue not to relieve or fever: cough and other symptoms need to go to the hospital pediatrician: (1) general treatment: pay attention to rest, room ventilation, drink more water; (2) anti-infection treatment: combined with bacterial infection can be used to treat antibiotics, often used penicillin, cephalosporins or macrolide antibiotics, viral infections are generally no special drugs, for the flu virus (3) symptomatic treatment: nasal congestion can be given with physiological seawater nasal rinse as appropriate. To minimize the runny nose, pay attention to dressing and keeping warm; recommend breastfeeding; avoid passive smoking; avoid going to crowded and poorly ventilated public places.