I have 4 kids and all of them have trouble with congestion. 3 has asthma and 1 just had sinus surgery. with your son being only tiga months old you might want to check with the dr. but we use vicks on the bottom of their feet and put on a pair of socks right before bed time. you can also use it during the day. Find out about acute sinusitis in children, including the causes, symptoms, treatment see your doctor urgently if you child with sinusitis has swelling or redness of an sprays (eg, otrivin) should not be used in children younger t. 11 jul 2016 crs is characterized by sinus symptoms lasting more than 3 months despite acute bacterial rhinosinusitis is diagnosed in a child based on before tiga years of age, become aerated at age lima years, and expand in size int. Sinusitis means infection and inflammation of the sinus cavities. does your child need antibiotics for a sinus infection? 10 days or more and not improving; symptoms (as above) with fever over 102 degrees lasting for 3-...