Cactus also exhibits the typical sore pain extending in the left arm down to the elbow that we see so frequently in Latrodectus mactans. The heart pains may be accompanied by numbness of the left arm and in particular by oedema of the hands, or even only the left one. They are mainly of a constrictive character (there are also stitches, etc.), as are all the pains in other regions of the body, and they are so violent as to force the patient to scream.
With the pain there is dyspnoea and a death-like feeling in the heart region. Hering states that in such cases the breath sometimes stops altogether for some moments, while the skin gets colder. Violent gasping and palpitation follow. Kent describes that when a patient holds his breath, his heart beats so fast it feels as if it would fly to pieces. This condition is most often found in conditions of toxic goitre with heart involvement. Clarke relates that a case of angina pectoris where Cactus acted had the following strange sensation: as though a swarm of hornets were going to the heart. During and after an attack of angina pectoris, great anxiety is also typically observed; a fear that there is some organic lesion of the heart that will cause sudden death.
If the heart condition becomes a great deal worse, the patient may arrive at a state of acute pulmonary oedema. In really severe conditions there may be violent palpitation, distressing dyspnoea, disorder of the valves, mitral regurgitation, and congestion of the lungs. The breathing becomes very laboured, and it is impossible for the patient to lie down. Oedema occurs in the extremities, especially in the hands, and the face is bloated and swollen. Eventually the whole body becomes oedematous. The urine is scanty and high coloured, breath is short, the heart labours very hard, and the patient is unable to make the slightest motion.
During this progressed pathological state you may no longer see the constricting pains that are the main key-note of the remedy.
We homeopaths do not frequently see full-fledged cases because