Removing lichen from brick border

[R1bbons]

Has anyone had any success with removing lichen from bricks/patios? We have a brick border around our tarmac drive which is covered in 'chewing gum' white lichen. We recently sealed the drive with drive 'paint' which looks fantastic, but has made the brick border look even worse. We just painted over the lichen on the drive, which may have been a mistake but we'll see!

I'd rather not pressure wash the brick border because I'm worried about blasting away all the pointing (plus the hose pipe won't stretch around to the end of our drive). I've tried vinegar, which did absolutely nothing. Is there anything else I could try? I've read that bleach can be used as well, but I wonder if it'll just be the same as vinegar? I'm not even sure that the lichen is alive and it's so ingrained in the brick that I can't see how bleach will shift it.

My last course of action is to just brick over it wit brick paint and hope for the best! Any other suggestions before I shell out for more paint?!

We had this and the only successful way to get rid of it was actually to jet wash it. DH did each brick really carefullly up to the edge and then we brushed a bit of kiln dried sand over it. It is really ingrained as you have said and we tried Algon (a vinegar solution) and Wet & Forget, and scrubbing with a really bristly brush but not bleach. I think it will show through any paint.
Would it be possible to get a jet washing company to come and quote for it? If its only a small patch, you may get them to add you on to another job local to you?
Perhaps try the bleach solution on a tiny patch first?

Thank you - might try wet and forget. Unfortunately we can't stretch the pressure washer all the way around from the tap, down the whole length of the drive!