The sun is a very good disinfectant and kills germs. Toilet tissue is also inexpensive. You can buy about five rolls of toilet tissue for the cost of one pack of pads. You will need to make a thick long wad of toilet tissue. Sometimes toilet tissue is too rough, however, and it can cause irritation and soreness to your skin.
Pads are also good.
They are designed to fit neatly between your body and your panties. They have strips of tape that keep them attached to your panties, and your panties help to hold the pads close to the opening of the vagina. Pads have a plastic lining to minimise leekages. If you use pads, you need to throw them down a pit latrine or burn them after use. Do not flush them down the toilet, as they will cause blockage.