What can you do to reduce poison ivy swelling ?

See below: You can use a mixture of Benadryl (diphenhydramine) gel and Hydrocortisone cream apply to the area of the rash to reduce swelling.

Many remedies: Many remedies can help. One of the best is jewel weed lotion. Homeopathic rhus tox12x or 12c, 2 pellets under tongue 3x/day often helps- for other choices see http://www.Naturalnews.Com/026516_poison_ivy_remedies.Html these are available at health food stores. Also try vit c 1000 mg 4x/day or more and good old benadryl (diphenhydramine). For more ideas see http://www.Earthclinic.Com/cures/poison_ivy.Html.