I am sorry you did not look carefully enough. You should look for the link that explains that sand flea bites are treated as mosquito bites. I add the specific quote below:

Treatment procedures and prevention steps for a sand flea bite are similar to those of mosquitoes. If more severe reactions are encountered or if there are signs of Leishmaniasis, then the sand flea bite requires professional medical treatment. As of 2006, there is no vaccine to combat Leishmaniasis caused by a sand flea bite.

Please return to the site and click on the linl in the above quoted paragraph.