my daughter has been having issues with rash and swelling and joint pain. at first dr thought it was Lyme disease and the blood test came back negative, she also got a repeat blood test which also came back negative. I am looking for other conditions that may have the same symptoms to figure out whats going on.
What kind of rash. Where the rash appeared?is it on face or all over the body?swelling of joints along with pain if this is what you meant?known allergy ?what is age of your daughter?more history would have been helpful here. I suggest it's better to consider seeing a rheumatologist to see if there is autoimmune condition. Also do these blood tests for RA factor, ANA,DSNA, anti CCP, ESR,CBC, urine microscopic and routine examination. Along with that if the joints are swollen and there is difficulty in motion then X-rays of the affected joints (knee, hand/ankle). Show the reports to rheumatologist. Or first visit the doctor and consulting a doctor in person as per the doctors' advice do the tests.