Nitric Acid (Nitricum Acidum): A Complete Homeopathic Guide to Uses, Symptoms & Benefits
Discover the powerful healing properties of Nitric Acid in homeopathy. From treating deep skin fissures and bleeding warts to chronic digestive issues and bone diseases, learn everything you need to know about this deep-acting remedy.

Don't self-treat a serious condition
Conditions like this deserve a doctor's eye. Start an online consultation and get a treatment plan suited to you.
Start ConsultationNitric Acid (Nitricum acidum) is a profound, deeply acting remedy in the homeopathic pharmacopoeia, suited to specific constitutional profiles and chronic conditions. It is particularly indicated for persons of a brown complexion.
The remedy holds a monumental place in homeopathic therapeutics for addressing deep-seated tissue affections. It is employed with great success in diseases of the bones, chiefly when those diseases have been preceded by a history of syphilis or the systemic abuse of mercury.
✨ Clinical Fact: Nitric Acid has a profound and specific affinity for the muco-cutaneous junctions—the delicate areas where the skin and mucous membranes meet, such as the margins of the lips, nostrils, and anus, where it produces characteristic deep fissures.
Mental and Emotional Disposition
The psychological profile of the Nitric Acid patient is characterized by a distinct want of serenity of mind. Patients suffer from deep sadness and a chronically chagrined temper. There is excessive irritability, often accompanied by an overwhelming uneasiness as to the termination of the disease, which frequently culminates in a profound fear of death. Furthermore, there is a marked aversion for employment.
✨ Clinical Fact: The irritability of Nitric Acid often manifests as a hateful, vindictive state where the patient is easily offended, holds long-standing grudges, and cannot be readily pacified by apologies.
Head and Sensory Organs
Head: Patients frequently experience a pulsating headache and episodes of vertigo so intense that they are obliged to sit down to avoid falling.
Eyes: The remedy is highly useful in amaurosis (partial or total loss of sight). It addresses paralysis of the upper eyelid, a heavy sense of weight in the eyes, and a running of pus from the eyes.
✨ Clinical Fact: Sensations in the body are frequently described as sharp, splinter-like pains, particularly in the eyes and other affected orifices, feeling as though a piece of glass or wood is lodged in the tissue.
Ears: Auditory symptoms include buzzing and beatings in the ears, a sensation of obstruction in the ears, and hard-hearing.
Nose & Face: The patient suffers from dryness of the nose and bleeding of the nose. On the face, one may observe a button-like eruption and ulceration in the red portion of the lips. The swelling of the glands of the neck is also highly characteristic.
Digestive System and Nutrition
When observing bowel habits, it is notable that the stools are habitually too soft. Because of this specific baseline, Nitric Acid can rarely be employed in those habits where there is a tendency to constipation.
The throat is marked by a burning heat and a pain as of excoriation. A unique reflex occurs where there is a sudden closure of the throat after having drank fast. The mouth presents a bitter taste. Gastric symptoms include a strong distaste for animal food and the impossibility of digesting milk. Notably, there is pronounced thirst specifically present in the suppuration of the lungs.
✨ Clinical Fact: Patients often exhibit a peculiar, intense craving for indigestible substances, such as earth, chalk, or paper, alongside a strong desire for fat and salty foods.
Abdomen: Patients suffer from an accumulation of air in the abdomen, with the expulsion of wind occurring night and morning. There are colics and severe shootings in the abdomen when touched, alongside a pain similar to that of an ulcer in the lower part of the abdomen. One will also note borborygmi (rumbling) in the abdomen and a heavy weight in the fundament (the anal region).
✨ Clinical Fact: Defecation, even when the stool is soft, causes intense, tearing, and splinter-like pain in the rectum that lasts for hours after the bowel movement is complete.
Urinary, Reproductive, and Respiratory
The urinary symptoms are prominent, featuring marked fetidness of the urine and pain in passing water, often accompanied by swelling of the glands of the groin.
✨ Clinical Fact: The highly offensive urine is classically described in homeopathic literature as smelling remarkably like horse's urine.
In the reproductive and respiratory spheres, the remedy is indicated for leucorrhoea, asthma, dry coryza, and uncomfortable obstruction in the nostrils.
Back and Extremities
The musculoskeletal system is widely affected. Symptoms include:
Pain in the sacrum and pain in the back.
Stiffness in the nape of the neck and shooting pains in the shoulders.
Pain in the thighs when rising from a chair, and feebleness in the knees.
Cramps in the calfs of the legs when walking after having sat down, and shooting pains in the heel in walking.
Cold legs and an agonizing icy coldness.
Tearing pain in the limbs and an itching inflammation in the limbs in consequence of the least cold.
The patient is exceptionally chilly; all physical symptoms and joint pains are noticeably aggravated by changes in temperature and damp, cold weather.
Skin, Sleep, and Systemic Symptoms
The skin presents with itching of tetters (various eczematous or blistering skin diseases), reddish brown spots on the skin, and warts. The warts indicative of Nitric Acid are typically large, jagged, or pedunculated, and they bleed very easily when washing or touched.
Systemically, there is a great disposition to take cold. Energy levels fluctuate predictably, featuring morning lassitude and after dinner weakness. Sleep is disturbed by agitation in the night and frequent dreams. Finally, patients may experience an afternoon fever accompanied by alternating cold and heat, as well as debilitating night-sweat.
Don't self-treat a serious condition
Conditions like this deserve a doctor's eye. Start an online consultation and get a treatment plan suited to you.
Start Consultation