Ive managed to catch lice ive never had it before. the back of the box says dont use if allergic to ragweed. wich i am. so what am i suppose to do? my scalp is itchy and im not sure what to do?

Patients with ragweed allergy who use topical Permethrin for lice treatment may develop shortness of breath and wheezing. An acceptable alternative is OTC topical Ivermectin 0.5% lotion, however, it is difficult to find; you will have to order it online. Malathion is prescription only, flammable, and has a very strong smell. Spinosad is also prescription only and can cause skin irritation.