I had my first Stelara injection 7 weeks ago. I developed within 3 hours an elevated heart rate and bp, swelling of feet and rash and dizziness necessitating admission to hospital. Majority of original symptoms cleared within 48 hours. Since then I have continued to have gradual worsening of rash over legs and arms - intensely itchy. Does not respond to antihistamine. Will this resolve once drug clears my system or do I need to go back to Gp?
Hello, I think this is a Chat Doctor.  I suggest you use a soothing lotion e.g. Calamine lotion.  Also, continue with oral antihistamines. However, if the rash worsens you might need a course of an oral steroid e.g. Prednisone. Hope I have answered your query. Let me know if I can assist you further.