(Sorry this is long..)
He's my situation.
A couple of years ago I developed peri oral dermatitis, it's mostly around the skin of my nose and because of this I can't use any make up (think foundation, bb cream etc) or soaps, face cream/wash etc or I risk a big break out that takes weeks of using mentrondiozal (sp?) Cream to get rid of it.
It was a really awful experience and I honestly looked like a lepper for 8 months 
These days the only thing I use in my face (not eyes, I can wear eye makeup) is an aqueous cream prescribed from my gp and occasionally some extra virgin olive oil as a moisturizer when my skin feels dry.
My skin looks really awful atm, I can't exfoliate or use sun cream and the aqueous cream doesn't seem to be doing it any favours, I'm certain I've aged at least 10 years in the past two and I'm not happy.
I started a thread a little while ago complaining about blackheads, as some kind mumsnetters pointed out I don't have blackheads, it's blocked sebaceous filaments (I think??) On my nose, chin and cheeks. I'm blaming the aqueous cream for this as it leaves a weird layer on my face and my skin never really feels clean after I've used it.
Anyway, on that thread some posters suggested using jojoba oil to cleanse with and also a salicylic acid after this to help with the 'blackheads' which I'm planning to do. I will avoid putting the salicylic acid anywhere near the affected area on my nose. The poster who suggested using jojoba oil said she uses a muslin cloth to wipe it off which I think will give some form of exfoliation (bearing in mind my skin hasn't been exfoliated in two years so it's really needs it) so that will be good.
I'm also thinking of using a face cream with an spf in it but again avoiding the area around my nose purely because I can't go on for the rest of my days not using sun cream, I'm only 33 and I don't want to cause years of sun damage needlessly.. My only concern with that is if I get hot and the cream drips down my face when I sweat (Sorry.. ) and touches my nose area (it's the folds around my nose and near my nostrils) them I'm screwed but I have to give it a try.
Can anyone think of anything else I could use or any tips from other peri oral dermatitis sufferers?? It's pay day tomorrow and I'm going to treat my self to some things for a new skin care regime, god knows I need it, the skin on my face has really been neglected the past two years but I was too scared to try any thing else.. I can't go on like this though I really do look awful now 
So shopping list so far.
Jojoba oil
Muslin cloth
The ordinary salicylic acid