Good remedies for overexposure/recon
- Lots of water, or something with electrolytes (coconut water, gatorade, etc)
- A sweet snack (a piece of cake, some chocolate, ice cream, etc)
- Sunlight on your bare skin
- Go for a long walk (45 min or more)
- Take a nap
Some of these have been recommended directly by Saint and Fire, others are personal experience.
If you have another headache that you think is from subs, or any other recon symptoms, try doing one or multiple of these