I'm not sure how many days in one of Neptune years but one of Neptune's days is 16 hours and 7 minutes long. And one year is 165 earth years so 365 x 165 = 60225 earth d â¦ ays in one Neptune year. 4 people found this useful. Answered.
Most rashes caused by poison ivy, poison oak, or poison sumac are mild and last from five to 12 days. In severe cases, the rash can last for 30 days or longer. Immunotherapy is not available for allergies to poison ivy, poison oak, and poison sumac.
Answer: Itâs Not Contagious. The poison ivy rash, known a contact dermatitis, can first appear as streaks or lines where the skin came into contact with the poisonous plant. A full blown rash usually occurs 12 to 48 hours after the initial contact, though in some cases, it may take up to a year.