Welcome to HCM.
It is very difficult to precisely confirm a diagnosis without examination and the answer is based on the medical information provided.
Skin conditions need to be examined to be exactly say what it is. It might be contact dermatitis
. It is a condition in which the skin becomes red, sore, or inflamed after direct contact with a substance.
Treatment includes washing with lots of water to remove any traces of the irritant that may remain on the skin. You should avoid further exposure to known irritants or allergens. Emollients or moisturizers help keep the skin moist, and also help skin repair
itself. They protect the skin from becoming inflamed again. Presently i advice you to use only antihistamine cream for twp to three days.
If the symptom persists after 3 days / increases i advice you to see dermatologist
Hope I have provided the information you needed.
Wish you good health. Take care.