I have a Skoda Citigo (2017). The nearside headlight appears to be misty. I think this is condensation. Any advice how to cure this would be appreciated. Thanks.

The seal along the join between front and rear of unit has probably failed. It did on one of mine so I ran a bead of clear sealant along the join and ran my finger along to smooth it out. Job done.

However it may not be needed. On the rear of the unit there are 2 rubber covers. Pop them off, leave it for a few hours and it will clear itself. That may sort it or you can use a hair drier blowing through the openings which will speed things up. Have a look at the rubber covers as they may be damaged or not sitting around the opening properly.

I second the above - my daughters suffered similar misting of the nearside unit on a 2017. I found run off from the bonnet was falling straight on to the indicator bulb holder so used some silicon grease on that to prevent ingress there, ran PTFE tape over the top of the headlight at the joint between the 'glass' and rear section and also used some duck tape to direct water run off from the bonnet away from the indicator bulb holder. No more problems since.

That's great advice, thanks. I will take a look.

I have had a look. Sorry, but what do you mean by the rear of the unit?

Are the rubber covers where you change the bulbs?