<s>[INST] Hi doctor, Recently I have been I'll and was throwing up regularly and have now discovered a large knot or hard lump on my neck just above my Adams apple and below my jaw line. I have no idea what it is. Maybe I pulled a muscle and it knotted up. I have tried massaging it to get blood flowing back through the muscles but no sign of change. Plus now two days later it's beginning to itch. Is this a sign of heeling? Please help. Kind regards. [/INST] HiWelcome to HCMYou have not mentioned the size of lump. This can be thyroid cyst or thyroglossal cyst. Both needs surgery. If it is some simple pimple it will go with time. But if persistant or increasing in size see your surgeon.Regards </s>