If this is seasonal it is likely you are coming into contact with something that gives you a dermatitis.
A doctor can look at this and decide if this is likely.
I can look at a picture here.
If this is the case, an over the counter medicine such as claritin might help.
However, you do need an exam, and a doctors care.
If the diagnosis is unclear, a sample can be sent to the lab.
This is easy to do, and helps with a definitive diagnosis.
OK, so that is an initial answer….
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