Swollen lymph node on the right side of neck caused by lice infestation, when will it go away? 2 weeks after lice is removed?

2_-4 wks: Lymph nodes are located throughout the body & generally noticable in exposed areas like the neck. They are usually pea sized at rest and enlarged when stimulated by bug bites, dermatitis, drainage or infection. They rarely can become damaged by infection & grow to golf ball size & need drainage or removal. Most enlarge and later shrink back down within a 4 wk cycle unless chronically stimulated.

Could be longer...: Enlarged lymph nodes are common when the body is fighting an infection. After the infection is cleared, the lymph nodes can take 1-2 months to go back down to their normal size.