Sounds like you might have a sensitivity to bug bites. When you are bitten by a mosquito for example, does the bite continue to itch for a long time like weeks? Just a curiosity but either way the answer is to hit your body with an antihistamine. I would suggest systemically with Benadryl and at the bite area with Benadryl cream. If the itching gets bad, Benadryl also has a spray that works very well but it is sticky and collects all dirt, dust and lint around.

I think that that this patient should take antihistamine use a cortisone cream and see a doctor to receive antibiotics

I would go and see your primary care doctor or to an urgent care .

The homeopathic remedy Apis 6x or 6c should assist in detoxing your body from any toxin which could cause itchiness.

You don't pull out the stinger. You can use aloe vera gel apply over the affected area

One of the best things is to get some meat tenderizer and with water make a paste and place on the bee sting- like it does with meat; the tenderizer breakdown down the protein of the bees venom decreasing and eliminating the inflammation

The swelling going down is a good sign. Keep it clean apply ice and you can use calamine and Benadryl for itching.

Keep the area clean, try some benadryl cream. If this does not improve after 2-3 days, contact your primary physician.