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suspicion accompanied by enlarged lymph nodes, with local irritation/discomfort are real reason to see ENT specialist
, if infection will be confirmed you mandatory need antibiotics. Cardiac palpitations can be transitory, due to agitation, emotions, coffee, smoking
, etc.. but if such episodes will appear again ,then you need ECG exam for clarification.
I wish you good luck and speedy recovery,
Hope this helps and I have answered your query. If you have additional queries don’t hesitate to ask.