Originally Posted by CreamyGoodness
Would stirring with a copper rod have helped him in this case?
Yes, but copper is poison. Use only as a last resort.
The H2S smell is at it's worse when fermentation is going. Don't worry too much about it while at his stage, but if you get nervous add some nutrient as mentioned above. Once the reactions stop the smell shouldn't linger too much. If it does, here's some suggestions in rough order of personal preference:
2- Rack to new carboy, then wait.
3- Degass by stirring or by bubbling with CO2 if you have the equipment.
4- Add sulfites.
5- Use copper