You need to have a medical professional look at this.
Over the counter medicine might not be strong enough.
Also that doctor will make sure you are not infected.
A quick care might be OK as well.
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Infection not likely.
Most likely an allergic reaction.
Rinse as much as possible.
You have already tried an over the counter.
As I stated previously, a medial facility, such as A&E, can give you a much stronger anti allergy medication and stop this reaction.
That is individual.
There is no way to tell.
If the reaction continues for some time, blistering and even scarring could occur.
That is not common but possible.
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So the bumpiness and the swelling is what need to be interupted.
You can try a little homeopathic calendula gel, which you can get at the health food store or some pharmacies.
But my recommendation about an exam remains the same. Do that on the way.