Post-nasal drip may become worrisome if it is accompanied by symptoms such as persistent cough, severe stuffy nose, recurrent infections, blood tinged mucus, or voice changes. In severe or persistent cases of post-nasal drip, a patient may be referred to an ear, nose, and throat specialist, explains Dolan.
Caffeine is also in your chocolate. The cocoa bean contains between 0.1% and 0.7% caffeine, 0.2% being the most common amount found. Caffeine is also present in lesser amounts in the husk that surrounds the cocoa beans, usually from .05% to 0.3%.
Caffeine on the other hand, is a plant alkaloid found in coffee, tea and cocoa. There are other alkaloids known as methylxanthines (e.g. caffeine), theobromine and theophylline. Caffeine acts as natural pesticide by protecting plants against certain insects that feeding on them.