If you're in Nigeria, there are products like Waw, klin, Omo, Good mama, Sunshine, Ariel, e. t. c, as well as Hypo with a higher chlorine content for your white panties. This disinfectant will help remove microorganisms from your panties before you wear them again but, ensure that it's thoroughly rinsed in a clean water and dried properly.
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RE: Ladies of Hive Community Contest #97 - PERSONAL HYGIENE AND SELF-CARE FOR LADIES