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What is Tonsillectomy is indicated in - and explain in detail?
"Tonsillectomy is indicated when it is thought that tonsillar infection is producing secondary effects in other organs. Rheumatic fever and acute glomerulonephritis develop as an antigen-antibody reaction to streptococcal infections. Though tonsillectomy does not help an established rheumatic heart disease or nephritis, recurrent attacks can be prevented by tonsillectomy. However, in such cases before undertaking tonsillectomy, there should be no evidence of active throat infection".

Tonsillectomy is not indicated in acute tonsillitis. It is indicated in recurrent acute tonsillitis. In fact during an acute attack of tonsillitis, tonsillectomy is contraindicated.