Leaking lower trailing arm bearing

[Nick-A5]

Hi, one day after used car warranty expired,  57k mikes. I have noticed a oil like dripping which seems to be coming from the bush/bearing at the rear of the front lower trailing arm passenger side. This leak does not happen when the car car is parked overnight but it can be seen when parked up immediately after driving there are small oil drip marks on the road where I stop to turn into my drive. Any help, advice or recommendations on this please as I am unsure if it is a fluid filled bush or if the leak could be from somewhere else.