OK, for carrying concealed, whether in a purse, pocket, on a belt, whatever, I agree with others who recommend a S&W j-frame chambered in .38 Special, and marked with ".38 Special+P" on the barrel (so that it can handle shooting the more powerful "+P" self-defense ammunition).
A j-frame is so easy to conceal, and if you decide on one with an enclosed hammer (such as the 40, 442, or 642), it will be much easier to pull from a pocket without snagging. You won't be able to practice single-action shooting (unless you choose the 638 model which has a little knob that you can use to cock the hammer), but in a draw-and-shoot high adrenaline situation, the operation will most likely be double-action, so that's what you should practice with.
But you also mentioned camping in your original post. I don't think anyone else has addressed this yet. I'm not sure where you live, but if you're anywhere near black bear and/or cougar habitat when you camp, you might want to consider protection from dangerous animals. If you want a gun that can double as both protection from 2-legged and 4-legged creatures, a .38 Special just can't do what a .357 Magnum can.
If you want the best (compromise) of all worlds, I recommend taking a look at the Ruger SP101 in .357. It is a heavy gun, which hurts it in the concealed carry category, but helps IMMENSELY in the shooting comfort category. .38 Special ammunition out of an SP101 is so pleasant to shoot, you can do it all day long without any pain, flinching, fatigue, etc. And .357 Magnum from it isn't that bad, and will be much more effective against a possible bear encounter than .38. I should also mention that a brand-new SP101 will only cost you around $450, which is a little less than a comparable S&W or Colt.
For reference, my fiance (very tall and slender) hates shooting my 642 (S&W j-frame), but really enjoys shooting my Ruger SP101. If you don't like shooting the gun you choose, you won't be as likely to practice with it, and that's not good.