Ay, ang halak na yan is really frustrating, lalo na kung walang obvious reason! Marami sa mga kaibigan ko na may ganitong experience sa 6-month mark, at sinabi ng pedia nila na sometimes it's just how their nasal passages are pa lang, may time pa sila to develop fully, or pwedeng mild congestion lang kahit walang actual sipon. Since kinalikasan mo na siya ng pedia twice, baka next visit mo i-ask mo specifically kung normal pa rin siya or kung may allergy na possibility, kasi some babies develop mild allergies around this age na hindi obvious at first?