how does rigworm appear?

Answer 1

http://www.nlm.nih.gov/medlineplus/ency/article/001439.htm

Answer 2

thank you now can you help me with something else?

how log does athletes foot symptoms last?

Answer 3

That depends upon the treatment, the person, and the hygiene of the patient.

http://www.mayoclinic.com/health/athletes-foot/DS00317