Hello,
Thanks for posting your query.
Your symptoms seem to be due to a tick bite or contact dermatitis.
Most tick bites are probably harmless and may cause no problems.
Swelling and rash seems to be inflammatory in nature. Refrain from scratching because this may cause the skin to break down and an infection to form.
In some cases, the best treatment is to do nothing to the area.

Emollients or moisturizers help keep the skin moist, and also help skin repair itself. They protect the skin from becoming inflamed again. They are a key part of preventing and treating such small rashes.

Corticosteroid skin creams or ointments may reduce inflammation. You can get one over the counter easily.

I advice you to follow this above mentioned measures still if it persists or if it spreads consult the dermatologist for examination and also to find out the cause.

Hope this answers your query. I will be glad to answer the follow up queries that you have.
Please accept my answer in case you do not have further queries.
Wishing you good health.
Regards.
Dr. Rakhi Tayal.

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Contact dermatitis is a condition in which the skin becomes red, sore, or inflamed after direct contact with a substance. It can happen due to an exposure to an allergen or irritant substance.
Regards.

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