Do ask a pharmacist - most have private rooms for interviews, where you could show your legs, so they can advise the best sort of cream / ointment / dressings. If a prescription is needed, then they'll tell you to see a GP, but in the meantime, there's probably something that you can buy to help. Don't be embarrassed - pharmacist and GP will have seen far worse, and only want to help you get better, not to judge. Often practice nurses are skilled in skin care, and many can prescribe a limited range of medications, both topical [eg to apply to skin] and tablets / pills.
As you suspect it's stress related, then retirement may well help. If you're scratching, then try to train yourself to rub circles round an itchy patch with pad of finger tip - that often removes the itching sensation, while not breaking skin.