A bump on back of his head and dr said it felt like a normal cyst at his 2 year appt last month.he came down under the weather he had fever for a few days and then got 4 bee stings to head now notice 4 moveable pea sized lumps back of lower head?

The new bumps are likely normal lymph nodes that have reacted to the bee stings or fever. Lymph nodes process body serum removing infectious or other debris from serum before returning it to the bloodstream. They normally enlarge for a few weeks before returning to smaller size. They are often found in the head or neck where there is minimal fat to cover them.