Help me I want to get rid of underarms and inner thigh darkening by natural ways because I can't use chemicals can you help me?

Try papaya soap

I have heard that exfoliating with a body/ facial scrub on these areas will help the darkness. Also I have heard that rubbing lemon on it helps to fade the dark color. I have personally only tried the exfoliating but bot for darkness but for ingrown hairs. It works =)