I did myself, bought saline and the tube spray to one side nasal and the mucus came out easily. I learnt this when my baby was hospitalised for bronchiolitis at 4mths. The episode came again twice and both times I did the same home remedy and it went well cos doct told me try to avoid giving medicines at such a young age. It looks painful but to see my baby relieved from phlegm and mucus I knew it was all gonna be well. Not advisable to give panadol at all. If fever, do sponge down religiously on whole body till cool down.
They cannot take panadol at this age. If you go pd they’ll prescribe saline spray/drop for the nose. They won’t prescribe any cough medicine. You can go pharmacy and buy saline spray to induce the mucus to flow out and use a aspirator to suck it out afterwards. It’ll be good if you have a humidifier at home.