<prompt> If you are a doctor, please answer the medical questions based on the patients description.I spilled a large amount of pachouli essential oil on the back side of my left hand and rubbed it on the backside of my right hand and on my neck. about a week later i noticed a rash. since then, I notice a bruise like rash at the place where i had taken a tb test in the past and behind my left ear on my hairline it feels as though there is a tender spot on my hairline left ear area. I was given 25 mg of Atarax Hydroxyzine Hydrochloride by my Dr. for the rash  <response>: Hello, It looks like your skin is allergic to Patchouli oil. Take non-sedating antihistamines Levocetirizine. You can continue anthrax as prescribed. But do not take both the antihistamines together. You can also apply 1 HY Chat Doctor. It effectively reduces itching, do not scratch. It should get well, if it takes time get physically examined by a dermatologist get treated. Hope I have answered your query. Let me know if I can assist you further. 