Hi @liztaq Welcome to Connect. I’m sorry to hear you’ve developed a rash while taking hydroxyurea. There are other members who have talked about similar experiences. Here’s a current discussion from @pendlebear discussion a rash and other members joining the conversation.
Developed Rash on Hydroxyurea (HU
https://connect.mayoclinic.org/discussion/developed-rash-on-hu/
Has the rash disappeared now that you’ve been off the HU for several weeks? Has your doctor discussed an alternative medication to treat your ET (essential thrombocythemia)?