Trigger finger is a common condition that affects finger movement, making it difficult to bend or straighten a digit smoothly. While various treatments exist, topical creams can offer localized symptom relief for the associated discomfort. This article explores how different types of creams may help manage trigger finger symptoms.
Understanding Trigger Finger
Trigger finger, medically known as stenosing tenosynovitis, occurs when a tendon in the finger or thumb becomes inflamed or thickened. Tendons glide through a protective sheath, held close to the bone by pulleys, allowing the finger to bend and straighten. When the tendon or its sheath becomes irritated, it can form a small nodule or swelling.
This swelling makes it difficult for the tendon to glide smoothly through the narrow pulley, particularly the A1 pulley at the base of the finger. As a result, the finger may catch, pop, or lock when bent, especially when trying to extend it. Activities involving repetitive gripping or prolonged use of the hand can contribute to its development, though it can also arise without an obvious cause.
Types of Topical Creams and Their Ingredients
Topical creams can offer localized relief by delivering active ingredients directly to the affected area. One common category is non-steroidal anti-inflammatory drug (NSAID) creams, which reduce local inflammation and pain. These creams contain active ingredients like diclofenac, which penetrates the skin to inhibit enzymes that produce inflammatory chemicals. Applying these creams directly to the base of the affected finger can help decrease swelling and discomfort.
Counterirritant creams create a distracting sensation to alleviate pain perception. Ingredients like menthol and camphor produce a cooling or warming sensation, temporarily overriding pain signals. Capsaicin, derived from chili peppers, works by depleting substance P, a neurotransmitter involved in pain transmission, leading to a reduction in pain over time. These creams do not treat the underlying inflammation, but can offer symptomatic comfort.
Natural or herbal creams are also used for soothing discomfort and inflammation. Arnica, derived from the Arnica montana plant, is traditionally used for bruising and muscle soreness, with believed anti-inflammatory properties. Comfrey, another herb, contains allantoin, thought to promote cell growth and reduce inflammation. While scientific evidence for their effectiveness in trigger finger varies, they are often used for their perceived calming effects.
Using Creams Effectively
Start by cleaning the skin over the affected finger or thumb to ensure proper absorption. A small amount of cream, typically a pea-sized dab, should be sufficient for the localized area. Gently massage the cream into the skin around the base of the affected digit, where the “catching” sensation often occurs, until it is fully absorbed.
The frequency of application generally follows the product’s instructions, often two to three times daily. Avoid applying creams to broken or irritated skin to prevent further irritation or adverse reactions. Performing a patch test on a small area of skin before widespread use can help identify any potential allergic reactions. Creams primarily offer symptomatic relief and do not cure the underlying mechanical issue of trigger finger.
When to Seek Professional Medical Advice
While topical creams can provide temporary relief for trigger finger symptoms, they are often a complementary rather than a definitive treatment. Seek professional medical evaluation if pain persists or worsens despite regular cream application. An inability to fully straighten the finger or persistent locking symptoms also warrants a medical consultation.
Signs of infection, such as redness, warmth, increased swelling, or pus around the affected area, necessitate immediate medical attention. If conservative treatments like creams and splinting do not lead to improvement, a doctor can assess the condition further. They may discuss other potential interventions, including steroid injections or surgical release, to address the underlying issue more directly.