A couple of wonderful things i have discovered.... Leigh's suggestion about the aloe is totally correct, but be careful if you have sensitive skin or chemical allergies, as even some that are marked "99%" pure, will have added color or other conditioning ingredients. In some places, you can actually get 100% pure, which has no color or added scent. As well, its even better if you can find, grow, or keep a live aloe plant (or plants) handy, as this form is the purest and freshest available to you, with all living enzymes still intact. Aloe is a powerful healing agent and will work for almost any burn, cut, scrape, or irritation, including those caused by shaving.
Last year, i went and bought one of those Norelco Cool Skin electric razors with the three floating heads, and it has been a wonderfully effective gift to myself for nearly razor-smooth legs and other areas such as chest and abdomen, as well as my face, while im still only doing laser treatments at the moment... But be careful - these things can also easily burn and irritate, especially in sensitive skin areas such as armpits, groin, backs of thighs. Once my skin got used to it, after a couple of weeks, generally no problem, except underthe arms and inner thighs. I regularly use a good exfoliating scrub such as St. Ives Apricot or St. Ives for Oily/Acne skin, and scrub real sensitive areas real good with that or something like a loofah prior to using the electric... It helps to prep the skin before assault by electric or other razor and really seems to help a lot... As well, Neutrogena makes a great little soap bar for clearing skin blemishes that's also a really good soft but effective skin exfoliator - i'll use a combination of these things sometimes, and only if i really need to save time and want the absolutley silky look on my legs - will go back to a razor at this point....
As well, what DebTV said about neosporin cream or ointment, i discovered on my own several months ago, and it also really seems to help in really keeping irritations at bay.
Usually, once out of the shower and shave, and while my skin is still a little moist, i'll combine a drop or two of that with a little cortisone cream or pure aloe gel, rub down the potentially irritated areas real good, and then moisturize my entire body with a real good neutral moisturizer. I use Lubriderm for sensitive skin, which contains no dyes, perfumes or other potentailly irritating agents and i love it every day of my life.... From all ive read and seen before, it's also really most important to regularly moisturize, especially if you are already on HRT, as i have read many times it will dry out the skin (someone please correct me on this if i'm wrong)...
Best of luck and much Love always,
ChefAnnagirl