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What is this reoccurring rash?

For the last year I keep getting a rash on the shin of my left shin on the exact same spot about every 3 weeks. It is very itchy, red, and raised. Warm to the touch. Stays small and goes away after a few days of hydrocortisone treatment. The biggest it got was about 6 inches long and 3 inches wide. Would like to got rid of it permanently.  
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973741 tn?1342342773
A rash that comes back over and over on your leg may be atopic dermatitis.  Another name for that is eczema.  This is common and not serious.  https://www.mayoclinic.org/diseases-conditions/atopic-dermatitis-eczema/symptoms-causes/syc-20353273  A doctor can easily diagnose this.  Dermatologists are the specialty that deals with skin.  That guide is pretty comprehensive.  Take a look.  I have this as well.   I use a corticosteriod cream for it and there are other creams on the market that your doctor can prescribe.  You don't want to overuse corticosteriods though as it can thin the skin so do this with guidance from your doctor and other creams have various things to be aware of in terms of potential side effects.  Truthfully, my goal is to prevent the patches.  I use an otc ezcema balm made by Aveeno after I shower.  It's thick. But it definitely coats the area and cuts down on itching.  I have infrequent break outs from that.   https://www.aveeno.com/products/eczema-therapy-itch-relief-balm You can buy it online or in a lot of retailers and drug stores.  The article has a lot of options for treatment though.  Check it out.  But for me, lightly dabbing a towel to the area after a shower and applying the balm prevents it from happening.  Hope that helps!
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