first off - are you wearing padded cycling shorts/tights for these rides?? if not - get a pair as these will help take the "sting" out of the ride and make life considerably more comfortable. be careful that you get the right size as if they're a litttle too big the padding can ruck up and cause even more problems. you can if you want but cycle short inners - basic cycle shorts that you wear under something like tights or other shorts/leggings.
second - not all wimmin get on with women specific saddles (my missus doesn't and she's a normal shaped woman) and although you can get all sorts of variants with gel inserts, padded noses (used a lot by triathletes as they are head down a lot so more pressure on the saddle nose), cut-outs, mesh etc finding a saddle that suits can take a lifetime of searching!!! I have finally found one that works for me on the road bikes (Fizik Arione) but am still looking for a MTB one (I'm close but not ideal!).
thirdly - if the skin is sore you can use something like chamois cream which is specially formulated for this. it's called chamois cream as originally most padded shorts used chamois leather which would harden up when it dried so needed to be softened somehow. Sudocream is an alternative.
fourthly - keep riding through the pain. yes it bloody hurts but you also need to toughen the area up and this only happens with regular riding.
fifthly - check your saddle height. if it's too low or too high, you're not helping matters and also not being fully efficient.
finally - and if you also experience some numbness, don't worry as this is normal with all cyclists. correct shorts, saddle and saddle position can help reduce this but it happens still.
hope that helps
