So so so itchy

I'm having a miserable night. In general, I've been able to take a bath with baking soda, oatmeal bath, lavender, and coconut oil, take a topping 75mg of the prescription antihistamine, a glass of wine, and go to sleep. Tonight was different. The rash is worse and the stinging itch just won't let me sleep. I am tired of thinking about this. The rash is typical of the EBV rash, according to pictures I find online. Sometimes the rash is related to the use of antibiotics for EBV, but I got the rash before starting Keflex and this class of antibiotic is supposed to be less likely to give the rash anyways. I don't know if I should try Lomatium but Jane Barlow thinks so. I don't know if I should restart the Fenben protocol. No one answered me on the Fb site about rashes they've experienced. Do I try Ivermectin? I'm afraid to do any of this because this night I thought I may have to go to the ER, the red, raised rash got so bad and has been so uncomfortable. Whe...