I understand your concern.
Vasograin is a good medicine to take to terminate an acute attack of vascular or cluster headache
. The side effects of the drug are minimal like nausea, vomiting, Muscle cramps
, stiffness, tiredness, Numbness and tingling of extremities.
Potentially fatal complications are severe peripheral vasoconstriction
and vascular occlusions.
The ways to overcome it is by avoiding the trigger. Keep yourself protected with comfortable clothes when you go out in air, avoid direct sunlight, and use effective sunscreen. In addition, you should try relaxation techniques
like yoga and meditation.
Hope this helps.