Take an over-the-counter oral antihistamine to reduce itching, swelling, and hives. However, this medication should not be given to children under 2 years of age or to pregnant women without prior approval from a doctor. The antihistamine can also make you drowsy, so don't drive or operate heavy machinery after taking it.
To relieve pain, take a nonsteroidal anti-inflammatory drug (NSAID) such as ibuprofen.