Hay nako, preggy cough is really tough! Please consult your OB first bago mag-take ng anything, kahit natural-looking remedies, kailangan ma-check kung safe sa baby mo at sa stage mo ng pregnancy. I know marami sa amin nag-try ng simple home remedies like honey and warm water or steam inhalation, but your doctor can give you what's actually safe for you and baby at 4 months. Get well soon, mama!