thanks for posting your query,
From your description your daughter is presenting with multiple lymphadenopathy
which are most probably due an infection (viral or bacterial or mycobacterial but rarely fungal). You need to get her examined by a pediatrician
. Pain killers will not help if there is an infection that needs to be treated. Bacteria or mycobacterium
are the most probable because of length of time your daughter has been suffering and the spreading pattern following lymph nodes. Some blood tests need to be done for signs of infection.
Also important to rule out a possible malignancy (lymphoma
) which could be very possible (burkitt's in children). So pediatric consultation is recommended as soon as possible.
Hope this helps