Preparation H Ointment is a topical, petroleum-based hemorrhoid treatment that works as a protectant, lubricant, and vasoconstrictor (via phenylephrine), providing fast relief from pain, itching, burning, and swelling.
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Preparation H Ointment is a widely trusted over-the-counter treatment designed to relieve symptoms of internal and external hemorrhoids. Its active ingredients typically include:
Mineral oil (≈14%) and petrolatum (≈75%) — act as protectants to soothe and shield irritated tissue
Phenylephrine HCl (0.25%) — a vasoconstrictor that reduces swelling and shrinks inflamed hemorrhoidal tissue
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Health
Usage
Apply up to 4 times daily, particularly after bowel movements, in the morning, and before bed. A thin layer should be placed on the affected area, and—if an applicator is included—used internally, with proper cleaning afterward
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Precautions & Side Effects
For external use only, unless otherwise directed by a healthcare professional
Not suitable for long-term use without medical advice due to risk of skin thinning or irritation with chronic use
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Discontinue use and consult a doctor if symptoms persist, worsen, or bleeding occurs
Additional Insights
Some users on Reddit report concerns such as skin thinning; however, many still find it effective with cautious use:
“Preparation H works for the majority… a few may have an adverse reaction.