If you are looking for an excellent massage at an incredibly reasonable price, Asia Herb Association is one of the best choices in Bangkok. There are several branches around town, but the Phrom Phong branch on Sukhumvit Soi 24 is an excellent choice for shopping convenience, with both the EmQuartier and Terminal 21 being right nearby. To cater for this crowd, Asia Herb stays open until 2am, making it one of the only late night spa treatment options in the city, meaning you can shop and eat first, and then have a relaxing massage before bed. There are several VIP treatment rooms here with herbal steam rooms, and Asia Herb specialises in hot compress massages, with their vast array of healthy herbs all coming from their organic herb farm up in Khao Yai. At 500 baht for an hour long massage, or 1100 baht for a 90 minute herbal compress treatment, you'll not only be feeling great, but have money leftover for the next day's shopping or cocktails!