1 doctor weighed in:
What would cause an itchy, painful rash over collar bone?
1 doctor weighed in

Dr. Tara Passow
Dermatology
In brief: Plant juice, maybe
There are several things that could cause such a rash, especially if the rash is only on one side, not both sides.
Shingles is a possibility. I'd expect clusters of small blisters to develop in that case. A contact rash from a plant or chemical, either alone or combined with sun exposure could cause this. Even bacterial infections, like impetigo or fungal infections, like ringworm, are possible.

In brief: Plant juice, maybe
There are several things that could cause such a rash, especially if the rash is only on one side, not both sides.
Shingles is a possibility. I'd expect clusters of small blisters to develop in that case. A contact rash from a plant or chemical, either alone or combined with sun exposure could cause this. Even bacterial infections, like impetigo or fungal infections, like ringworm, are possible.
Dr. Tara Passow
Dr. Tara Passow
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