Hello,
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I have gone through the details and the images that were provided (attachment removed to protect the patient's identity) and I do understand your concern. The concern you are currently having in terms of discomfort in the temple areas is a sign of eczema. Currently based on the symptoms and the images that you have provided it is an atopic dermatitis also known as eczema. This is basically an allergic reaction that can happen due to any external stimuli in terms of irritants in the atmosphere, dust, food items, medications, skin care products. The other causes of atopic dermatitis would be temperature changes. As you rightly mentioned, sweating is a form of temperature change that can also trigger the formation of atopic dermatitis. Atopic dermatitis usually can be genetically transmitted from ancestors or can appear at any point in life due to changes in the body which has happened over the past years due to any stressful situations, any infections, minor or major surgeries, or any changes that have happened which has been quite common recently due to the pandemic as well. The reason why sweating causes you to have discomfort is because of the fact that the salt in sweat irritates the skin which results in a burning sensation. I would recommend avoiding its usage and using other medications which I will be prescribing below. However, due to the fact that it is an internal allergic reaction to external stimuli or temperature changes, there is a possibility of recurrence during which time the same medication can be used during future recurrences as well.
There are certain tests that you can also do to rule out any possible allergens and avoid its usage. I suggest you the following.
- Use Hydrocortisone 1 % cream. Apply a thin layer of the screen on the affected area at night daily for 2 to 3 weeks. Keep it overnight and wash it off in the morning. You may use the same cream during future references as well.
- Take tablets Levocetirizine (antihistamine) and Montelukast. Consume this tablet daily for 2 weeks at night one hour before going to bed. This helps in reducing any symptoms and the possibility of allergic reactions.
- Cold compresses can be applied on the affected area or any other areas that may be affected by eczema and the future for 5 to 10 minutes daily.
Allergy panel test - An allergy panel test helps in identifying possible allergens. This is done by pricking the skin with possible allergens or placing a patch on the skin of a possible allergen which could be allergens including insects, food items, medicines, or any other external possible allergens. Following the test the doctor will provide you with a report which shows the allergens that you are positive to and the ones that you are negative to so that it will be helpful for you to avoid the possible allergens in the future.
Having said that, atopic dermatitis or eczema has an increased chance of being formed on dry skin and may leave dry patches on the areas where they are formed resulting in the formation of pigmentation as you have mentioned. The pigmentation will usually reduce once the recurrence of these rashes is reduced.
It is very important to keep your skin moisturized and hydrated at all times and to make sure to have at least 0.92 gallons of water per day to keep your skin less dry, especially in the areas where there is a possibility for eczema.
I hope this helps.