The rashes you develop when you have pityriasis rosea become itchy and unsightly. You can use natural home remedies to ease its symptoms. Use aloe vera, coconut oil, lavender oil, neem, and calamine lotion topically to ease the itch. Eat some garlic and some flaxseeds to heal your skin faster. There are some herbs you can use on the rashes, such as calendula, mullein, and comfrey. Remember to always stay clean and cool to prevent or reduce itching.