Topical hydrocortisone is a very common steroid medication with a wide range of uses. It is available both by prescription and over the counter, depending on the strength and formulation. Most people have come across topical hydrocortisone for skin conditions like eczema or allergies. However, its uses extend well beyond skin irritation, and it even has benefits for the scalp and hair. In this article we take a deep dive into topical hydrocortisone for skin and hair. We cover how it works, its side effects and how to use it safely.
What is Hydrocortisone & How Does it Work?
Hydrocortisone is a corticosteroid hormone that plays a crucial role in reducing inflammation and calming the immune response. When applied topically, hydrocortisone can soothe irritated skin, manage allergic reactions and reduce swelling. In small doses, it is often safe and works well for short-term use.
Topical hydrocortisone comes in many forms, including creams, ointments, gels, serums and lotions, so it works across different concerns and parts of the body. Concentrations of 1% or lower are available without a prescription in over-the-counter creams. Stronger formulations and less common forms, such as solutions or compounded formulas, require a prescription. Whatever the strength, it needs cautious use, especially over prolonged periods or on sensitive areas.
The main way hydrocortisone works is by mimicking the natural hormone cortisol, a steroid that helps regulate inflammation and immune responses. Once absorbed into the skin, it suppresses the chemicals responsible for inflammation, redness and swelling. As a result, it helps relieve symptoms like itching, pain, swelling and redness.
What Does Topical Hydrocortisone Treat on the Skin?
Hydrocortisone can treat a variety of skin conditions through its anti-inflammatory and immune-regulating actions. Its main benefit is fast relief from the discomfort of itching, redness and swelling. The most common skin uses include:
- Eczema: This chronic skin condition causes dry, itchy, inflamed skin. Topical hydrocortisone helps reduce flare-ups and soothe the irritation.
- Psoriasis: Hydrocortisone cream can help reduce the thick, scaly patches that are a typical feature of psoriasis, which provides relief from inflammation and itching.
- Contact dermatitis: This is usually a reaction to allergens or irritants, with common triggers including perfumes, cosmetics, soaps and certain fabrics or metals. Topical hydrocortisone can ease the symptoms of contact dermatitis by calming the irritated skin.
- Insect bites: Bites often cause red, swollen, itchy welts. Topical hydrocortisone can reduce the swelling and help control the itch.
- Rashes and allergic reactions: Hydrocortisone is effective at relieving mild allergic reactions like red, itchy rashes.
When using topical hydrocortisone on the skin, apply it sparingly. A thin layer is usually enough to control symptoms. Always follow the directions on the product label, or from your provider, for how much to use and how often. This varies with the strength of the formula and the severity of the condition. If you have a condition that needs prolonged use, or you want to use it on sensitive areas like the face, see a doctor first. They can help you use it correctly and avoid side effects like skin thinning.
Can You Use Hydrocortisone for Hair & Scalp?
The benefits of topical hydrocortisone also extend to the scalp, which is prone to inflammatory conditions like psoriasis, seborrhoeic dermatitis and allergic reactions. By soothing the scalp, hydrocortisone can ease these conditions and may even reduce the associated hair loss. The main scalp and hair uses include:
- Scalp psoriasis: For psoriasis on the scalp, topical hydrocortisone can reduce inflammation and ease the discomfort of itchy, scaly plaques.
- Seborrhoeic dermatitis: This causes flaking and itching of the scalp and other oily areas. At its mildest it presents as dandruff, but when more severe it can lead to swelling, irritation and even hair loss. Topical hydrocortisone can help manage flare-ups, calm the scalp and reduce the itching that can damage hair follicles.
- Allergic reactions to hair products: Hair dyes and styling products can trigger irritation and redness on the scalp. Applying hydrocortisone can calm the skin and ease the symptoms.
- Hair loss treatments: Beyond treating seborrhoeic dermatitis, compounded topical hair loss treatments sometimes contain hydrocortisone to reduce irritation from other regrowth ingredients like minoxidil and tretinoin.
Topical hydrocortisone for the hair usually comes in foam or solution forms, which spread well without leaving the scalp greasy. It is generally best to access these through a medical provider who can diagnose the condition and prescribe the right strength and form for you.
Is Topical Hydrocortisone Safe?
The word “steroid” often raises concerns. Topical hydrocortisones are synthetic steroids that imitate your body’s natural corticosteroids. Because of how they are applied, they work only on the area of skin or scalp where you put them. As such, topical hydrocortisone is widely considered safe, especially for short-term use. That said, some side effects can occur, particularly with excessive or prolonged use:
- Skin thinning: This is more likely with prolonged use, especially on delicate areas.
- Stretch marks and discolouration: These can develop with excessive use.
- Skin infections: Inappropriate use can worsen some infections or trigger a contact allergy.
- Hair thinning: Long-term or excessive use on the scalp may weaken the follicles.
Where you use it matters too. The skin on the face is thinner and more sensitive. So although hydrocortisone can be used there, it is more prone to thinning and discolouration with prolonged or excessive use. To minimise these risks, follow the instructions carefully and consult a medical provider where possible.
Topical hydrocortisone is also not suitable for everyone. If you have a pre-existing medical condition, take medications, have allergies, or are pregnant or breastfeeding, see a doctor first. It can be used on children, but only as directed by a healthcare provider. Their skin is thinner and more sensitive, so they are more prone to side effects.
Topical hydrocortisone is a useful treatment for a wide range of skin and scalp conditions. It reduces inflammation, soothes irritation, calms allergic reactions and can treat scalp conditions that might otherwise cause hair loss. However, since it is a steroid, use it cautiously to avoid side effects. These are most likely on sensitive areas or with excessive or prolonged use. It can be tempting to reach for hydrocortisone to manage chronic conditions like eczema, rosacea or scalp seborrhoeic dermatitis. You should not, though, since overuse can cause skin thinning, hair loss and even long-term damage. If chronic skin or scalp inflammation is a concern, speak to a dermatologist or other specialist about safer non-steroid alternatives.
At City Skin Clinic, we are passionate about personalised skincare and hair treatments. Our online skin clinic offers safe and effective custom compounded treatments. Where appropriate our doctors use ingredients such as tretinoin and hydroquinone to treat skin conditions like acne, hyperpigmentation, melasma and skin ageing. Our doctors also provide prescription-strength hair loss treatments using ingredients like minoxidil, finasteride and dutasteride. To start your personalised plan, book a virtual video consultation or use our online consultation form. The journey towards great skin and hair starts here.
This article is intended for general informational purposes only and is not a substitute for medical advice, diagnosis or treatment. Always consult a qualified medical provider for any medical concerns or questions you might have.
