There is no ayurvedic treatment for tuberculosis. For other answers kindly share his complete history since corona only is not a reason of tuberculosis especially intestinal one , ur husband must be harbouring it from earlier due to covid immunosuppressant effects it’s symptoms are out now.
Ya diet had a role in this, for which u had to share his current symptoms related to abdominal and bowel habits
Next Steps
Feel free to consult with detail history for further guidance and prescription