Hi, a lot of viral infections are going on due to the weather at this point of time, you can use paracetamol syrup, and saline drops in the nose, steam is something that can cause burns and is not recommended, you could try using a humidifier

If mild,avoid unnecessary medicine and just give steam inhalations for cold and cough and decongestant nasal drops for nasal block or increased cough on lying down. Use paracetamol for fever and repeat every 4 hours if required. If not improving OR accompanied by other symptoms like wheezing or breathlessness or dullness and refusal to feed,consult your paediatrician for physical examination and treatment.

Upper respiratory tract infection is very common till 3 yrs of age Most of the time cough cold, fever  are viral in origin, it may subside by 3 -9 days. No need of any medication if mild.  If fever above 100F then need fever medication  (paracetmol) as per weight. If cold then need steam inhalation, nasal decongestant drops (nasivion baby nasal drops/Otrivin-P nasal drops 1drop in each nostril 3 times a day for 3 days). If cough then need cough syrup or drops as per babys cough condition  (wet or dry). Keep ur baby well hydrated in cough cold fever episode Maintain hygiene, hand wash properly, Keep ur baby away from other infected persons, continue to give  all  food items as before, continue breast feed as well till 1.5 months of age. It will help for fast recovery.  If decreased oral intake, decreased urine output,  breathing difficulty, Then need consultation with nearest pediatrician.