Thank you for your query,
High blood triglycerides is due to familial hyperlipidemias
, obesity and unhygeinic food habits.
The treatment is
1. Dietary restrictionvof fats, sugars and carbohydrates
2. Physical exercises
Your child requires dietary restriction and intake of healthy and balanced diet, physical exercises only and sould be continued for 6 months and after 6 months test is being repeated to know the level.
In spite of 6 months dietary restriction and increased physical exercises, if the triglyceride is above 1,000mg/L needs treatment with medication like HMG CoA reductase inhibitors like statins.
Hope I have answered your query.