so its been a few weeks or months i've lost track but i have this pimple on the top of my vagina in the pubic area its red or pink whichever i dont think its anything more serious then a pimple but it hasnt gone away is there any treatments for it?

Also on the inside of my thighs towards the vagina where your legs connect i get very dry to the point of my skin cracking and i do get dry on my vagina as well the inside of my legs where your underwear i guess rubs against will start to itch i've tried putting baby oil and lotion to maybe help which it does for a while but it keeps coming back i dont know if i just need to keep using it or what. But i do shave as well on my vagina so i guess that be irritation from the razor. My gf told me that maybe my underwear is to small and thats why the inside of my legs hurt is the underwear is probably rubbing up against it.

So if you have any tips or advice for both of these i'd much appreciate it.