I use boots botanics which have a blemish prone range and it seems to be very good - the only spots i get now are hormonal ones on my chin! Its all plant based kew-approved ingredients and not too expensive, might be worth a look?
Try the A-derma and Avene ranges at large Boots stores...both are specialist French brands that I found very good when I had excema. A bit pricey but do last.
I have psoriasis, and have spent a lot of time and money on products across the spectrum of skin products. (my Mom/sis-in-law's never have to buy products...lets put it that way) However, this is when I stray across the spectrum for a change of fancy, but, I always still have to come back to E45's range of products.