Hay, based sa description mo lang mahirap sabihin kung lungad or plema talaga, kailangan ng doctor to determine properly! I'd suggest bringing your little one sa pedia para ma-check nang tama, especially if it's been going on for a bit, kasi ang treatment is very different depending sa what it is. One of my mum friends thought her baby had cough lang but turned out may mild bronchitis, so better safe than sorry talaga with these things. Let me know what the doctor says ha!