What are the side effects of cod liver oil and zinc oxide?

Fish liver oil and zinc oxide is an over-the-counter medication commonly used in dermatology to treat acute and chronic dermatitis, as well as chilblains and mild burns or scalds. It has various potential side effects, including skin irritation, allergic reactions, dry skin, folliculitis, and skin atrophy, detailed as follows:

1. Skin Irritation

Fish liver oil and zinc oxide contains main ingredients such as fish liver oil, zinc oxide, and vaseline. If a patient has sensitive skin, using this product may cause skin irritation.

2. Allergic Reactions

If a patient is allergic to components of fish liver oil and zinc oxide—such as fish liver oil—it may trigger an allergic reaction after application, leading to symptoms like redness, swelling, and itching.

3. Dry Skin

The fish liver oil and zinc oxide in the formulation have moisturizing and astringent properties. However, prolonged use may result in dry skin.

4. Folliculitis

Long-term use of fish liver oil and zinc oxide may block hair follicles, potentially causing folliculitis, which manifests as red papules and itching in the affected area.

5. Skin Atrophy

Prolonged use may reduce sebaceous gland secretion in the skin, leading to skin atrophy.

It is recommended to use this medication under the guidance of a physician to avoid side effects and potential harm to the body.