Hi doc tiz is karthika... I have a preterm boy baby... And past two days he is suffering from nose block.. But no mucus.. Dry nose... But inside her nose can hear the some liquid items like noise blockage..... When we discharge from hospital the same problem he had they told it's normal for preterm baby...they gave me nasoclear saline nasal drops for three days I used for her.. And it's gone.. But nw once again the same prob... Is it normal...am much worried about it