Yong Guang Tang Big Tonic Egg. Yong Guang Tang, which originated from a traditional Chinese medicine pharmacy, emphasizes dietary supplements. Leveraging the advantages of its original pharmacy, it has improved various medicinal dietary supplements. The Big Tonic Egg uses Yong Guang Tang's. Yong Guang Tang, which originated from a traditional Chinese medicine pharmacy, emphasizes dietary supplements. Leveraging the advantages of its original pharmacy, it has improved various medicinal dietary supplements. The Big Tonic Egg uses Yong Guang Tang's exclusive braising secret recipe, combined with 5 days of braising, allowing each egg to retain the essence of the medicinal braising liquid. Every bite is sweet and mellow, allowing people to eat healthily and deliciously. Address: 南投縣竹山鎮橫街71號 Hours: 00:00–23:59 Nantou