My 18m toddler has been scratching her diaper area ie around the waist and groin area. I am not sure if it is due to the humid weather recently. I have tried to loose the diaper and applied moisturiser/desitin but it doesn't seem to be getting better. What else I can do to ease her itching?

Yes, like what Grace had mention, it could be due to hot weather and developed some rash. I let my kids wear these cloth diapers when they have rash around the waist or when they have serious diaper rash. It works for them, you can give it a try. You can buy them at mothercare Singapore,kiddy palace Singapore