Its purpose consists in evaluating the A.M.S.by oneself or somebody else as well as spelling out what steps and measures ought to be taken. The trekker may continue to ascent, but very slowly and of not more than 1.000 feet in-one day. Besides, he shall drink abundantly and take aspirin against headache. If the headache persists, he should take a new score every couple of hours. Always protect yourself against cold.
Pulmonary oedema impedes obviously the air to circulate within the lungs where water increases.
The body reacts to this by accelerated breathing, coughing and expectoration. But these actions do not relieve the trekker for a longer time, they just give the illusion of a temporary alleviation.