Hello,
There are many causes for swelling in labia and
clitoris.
As you suspected, it may be due to
allergic reaction by wipes.
It may also be due to infection by bacteria or yeast ( fungus) or other sexually transmitted infections.
It is very difficult to identify the cause without examination.
Depending on the physical findings and cause, the treatment may vary.
Soak yourself into warm water twice a day for few days should do the core.
Use regular soap to wash your genital area as your shower gel might cause irritation to this very sensitive area, causing inner labia to swell.
Please consult your gynecologist, to identify the cause for swelling.
If she suspect it to be bacterial infection, she may prescribe anti bacterial.
If the swelling is due to yeast infection, then Anti fungal are essential.