### instruction:
If you are a doctor, please answer the medical questions based on the patient's description.

### input:
Hi I am 24 years old and a week ago i found a lump on the left side of neck near my collar bone. A few days ago it started to hurt and now it hurts when I try to turn my head or lay down at night. I havent been sick in almost 6-8 months. I have felt more tired in the past month but I cant sleep at night. I have been told about 3 years ago that i had Mellonomia skin cancer and I had it removed. I also have a family member that has survived Lymphoma and its worrying me can you tell me what I need to do. Oh and another thing I do not have health insurance at the moment. HELP!

### output:

Hello and welcome to ChatDoctorThe neck region (near the collar bone) has many lymph nodes. Any swelling in this region can be a lymph node enlargements. Malignancy of lymph node i.e. lymphoma is not usually painful, but involvement of nerve can cause pain. Since you have family history of lymphoma, it has to be ruled out by some investigations. A FNAC (Fine needle aspiration cytology) needs to be done. In this procedure cells are sampled with a needle and are seen under the microscope. If malignant cells are present further excision is done and histopathological examination is done. Histopathological examination characterizes the type of lesion. Since you have a history of melanoma in the past, melanoma can recur as it is an aggressive tumor and can metastasize to lymph node.FNAC will give information about the type of cells in the lymph node. The pain associated with the enlarged lymph nodes indicates some kind of inflammation. Infection in the head and neck region often cause enlargement and pain in the local lymph nodes in the region. Consult your doctor for investigation. Next step/ investigation will be decided subsequently. Thanks and take care Chat Doctor. 