Perforated Ear Drum

Sorry mods but I posted this in the normal baby thread so I figured it should probably have gone in here, feel free to remove where necessary.

DD (4 months) has had fluid draining from her right ear for about 3 days so this morning I took her to the Dr to get it checked. It just looks like wax has been draining out. He said it appears she has a perforated ear drum which is said is not uncommon and said probably caused by alot of muscus in her nose which has overflowed out her ear. He said her nose is blocked up and did notice her right eye is a little puffy compared to her left.

She got her first cold at 8weeks and it flared up again about 2 weeks ago but she has never been without a snotty/muscus noise of some sort. He has suggested using saline drops to try to dry up her nose and then if that works her ear should dry up also and if that doesn't work he has said to use 1 drop of Otrivin to see if that sorts it out, otherwise it's back to Dr.

It is not worrying her at all which is why i didn't take her yesterday. She is sleeping very well (started sleeping through about a week ago) and is eating all normal. Happy to play and not unsettled at all so it's not causing her any pain.

Wondering what other people have used to help their bubbas with this. He said not an issue unless it becomes an ongoing problem which may affect her hearing which of course I really don't want so any tips of what has worked to sort this out would be greatly appreciated.