Swelling And Ecxema Rash Appeared Between Eyebrow. Swelling Persist After Treatment. Concerned
The eczema like rash may be due to contact dermatitis to helmet, as correctly thought by you.
You did a good thing by replacing the helmet.
In contact dermatitis there is rash, swelling and itching or burning. But according to your history there is no itch, this creates a doubt whether it is a contact dermatitis.
So let us see what other possibilities are:
This swelling can be rosaceae or seborrheic dermatitis and few more conditions.
Can you post a picture of the lesion? You have a feature to upload the images by yourself on the right side of this query page. You may want to utilize it.
As a mother, you are definitely concerned. However, it does not seem like a serious concern to me. So, please relax.
You may want to discuss about these options with a Dermatologist.
Feel free to ask any further doubts.
Wishing your son a good health.
Thank You