My 7 year old daughter has psoriatic juvenile idiopathic arthritis and is currently taking 15mg of methotrexate a week. Even though I she has had her chickenpox immunisation, her blood test show she has no immunisation to the virus. One of her friends has just developed chickenpox and my daughter has been exposed to the virus. She has no symptoms but she is booked into have injections into her joints tomorrow. Should I cancel the injections and do I need to take her to the doctor

Summarized question: Would taking 15mg of methotrexate safe for psoriatic juvenile idipathic arthritis?