Hi, Thanks for asking. Based on your query, my opinion is as follows. 1. ASO titres are antibody titres to streptococcal infection. 2. More amount means, there is possibility of injury due to these antibodies. When it was high, it needed to be reduced as these antibodies can cause injury to heart and joints. 3. Antibodies are going to be present for life and you need not worry about. ASO will always be positive. However, it wont harm you in low titre. Look at the quantity. Improving nutritional diet with moderate exercises would improve your immune system and also the cardiac and joint function, thereby limiting any possible damage. Hope it helps. Any further queries, happy to help again.