hi there. I am 31 yrs old,female. Few days ago,swollen lymph nodes on my neck at the left side started.previous to that i had to see a physician dut to my constant headache and constant ache on my nape. I had a paranasal sinus but it was clear.I went back to my doctor to let her know that my lymph nodes at the neck are swollen so she prescribed me cloxacillin antibiotics days after that my right lymph nodes at the right are now swollen and with redness on my cheeks and my neck and its very itchy. i have several sore in my mouth. i stop taking my medication. pls help me what to do.thanks.more power