Tarentula Cubensis from Boericke says:-

A toxaemic medicine , septic conditions. Adapted to the most severe type of inflammation and pain early and persistent prostration. Various forms of malignant suppuration. Purplish hue and burning, stinging pains. It is the remedy for pain of death, sooths the last struggles. Pruritis especially about genitals. Restless feet. Intermittant septic chills. Bubonic plague. As a curative and preventative remedy especially during the period of invasion.

Head - dizziness after heat and hot perspiration. Dull ache on top of head. Shooting pain through the left eye across frontal region.

Gastric - Stomach feels hard, sore. Loss of appetite, except breakfast.

Back - Itches across kidney region

Extremities- Hands tremble, turgid with blood
Urinary - Retention, cannot hold urine on coughing

Skin - Red spots and pimples. Feels puffed all over. Carbuncles, burning, stinging pains, purplish hue. Gangreme, abscesses, where pain and inflammation predominate.

Sleep - Drowiness. Sleep restless. Sleep prevented by harsh cough.

Relationship - Compare Ars. Pyrog. Crotal. Echin. Anthrac. Bell. Apis.

Better for smoking. Worse night.