DESCRIPTION
Aconitum napellus is an excellent short acting remedy also known as Monkshood.The entire plant is used except for the roots. An especially useful remedy when symptoms arise from sudden shock or fright.

This quick acting remedy can also be used for sudden change in weather or exposure to dry cold winds. Physical and mental restlessness with anxiousness are key features that run through this remedy.
 
A headache sudden onset of bursting, throbbing headache. The sensation of a band around the head.
Head
Injury to the eye to relieve pain and inflammation.
Ear pain with increased sensitivity to noise.
 
Respiratory
Initial stages of common cold having to sneeze with clear, hot, nasal discharge. Burning in the throat with eye pain.
The best remedy for constant short dry cough. This short cough starts suddenly and mainly after midnight.

Fever
Unexpected sudden high fever after exposure to cold weather.
Bitter taste for everything except water
Severe thirst for cold water
Patient wants to be covered always
 
Dose- As prescribed by the physician. Can be taken along with allopathic medicines.
 
Precautions
Maintain half an hour gap between food/drink/any other medicines and homeopathic medicine. 
Avoid any strong smell in the mouth while taking medicine e.g. camphor, garlic, onion, coffee, hing.
 
Side effects: none reported.
 
Use under medical supervision.