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Materia Medica Viva – Volume 2 page 315

Another keynote sensation of Anacardium is that of a band around an organ or an extremity; pain in any area may be accompanied by the sensation of a band-like constriction. Other remedies produce a somewhat similar sensation, but each has a distinctive quality. The Anacardium band sensation is similar to the feeling produced by an elastic bandage; in Anacardium this elastic sensation is very well-defined with discrete boundaries. Platina also produces an elastic bandage sensation, but the feeling is more diffuse than that of Anacardium. Tuberculinum produces a hoop-like sensation, especially around the head, which feels as if an unyielding iron band is constricting the head. Cactus produces more painful, wire-like constricting sensations.
A tendency to sighing and amelioration from same is a symptom often met in Anacardium, especially in those individuals with a shy, timid temperament and lack of self-confidence. A general amelioration comes from eating. He eats and in one or two hours is hungry again and has to eat; otherwise he feels very bad. Sometimes there is general weakness not long after eating. Another modality of Anacardium which it shares with Pulsatilla and Ferrum is an amelioration by moving about slowly.
Worse from rubbing and when sleeping on the sides. Restlessness that comes every two or three days. Symptoms go from right to left. The patient is usually aggravated by cold, but heat also aggravates sometimes.
Head
Pressing headache in different parts of the head as from a blunt instrument pushing in, worse with motion, mental exertion, coughing and bending the head backwards; better with eating, exercising, hard pressure, and by falling asleep. The feeling of a plug or a blunt instrument is not always described as such; sometimes the description may be of hardness in the head or a heavy feeling in a particular location, of a piece of metal or wood in an area of the head, etc. Hysterical type of headache from strong smells. Gastric headaches. Periodical headaches. Vertigo is worse on stooping and rising, worse on walking. Little boils on scalp.