Hello,
Yes there are incidents of allergy to propylene glycol and the incidence of allergic contact dermatitis to propylene glycol may be greater than 2% in patients with eczema. Diagnosis of skin allergies includes Skin ***** tests (pricking the skin with a needle or pin containing a small amount of the allergen
Please get these investigations done to confirm any allergy to propylene glycol.
It is very difficult to precisely confirm a diagnosis without examination and investigations and the answer is based on the medical information provided. For exact diagnosis, you are requested to consult your doctor. I sincerely hope that helps. Take care and please do keep me posted on how you are doing.