My son is 2 yr old.he has problem in sleeping.every night after 3 hours he wake up and find difficult to sleep.he change his position again nd again.he wants to sleep but due to nasal blockage he cant.i use nasal saline but no effect comes.it takes 2 to 3 hours in opening his nose.i have observed he never sleep more than 3 to 4 hours peacefully.when he again sleeps after 3 hours (very hard time me every night) ,he sleep only 2 to 3 hours after changing his posture.what to do?i think his nasal skin gets irritated so he might feel difficulty.what is your opinion?