Make a paste with baking soda and a little water, this should bring out the itch, and the swelling, take some ibuprofen if you can. Hope this helps, good luck to you.
What Is A Good Drawing Agent For Spider Bites?
We need more information to try and answer your question. What do you mean by this? Do you mean you are trying to draw a replica of what a spider bite looks like, or does someone actually have a spider bite and would like to know what they can do for it???