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There are innumerable lymph nodes i our body and few are palpable also in otherwise normal person.There can be a reactive enlargement of lymphnodes
in a person with an infection in a particular area and the enlargement of lymphnode adjacent to it like an abscess
on the hand ;arm can give rise to a lymphnode enlargement in axilla
.In such cases you have to treat the infection with antibiotics and once the infecion is settled the lymphnode swelling and pain in reduced and it goes away.So see what is exactly your problem;get examined by a doctor and he will give you the required treatment.