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.
Usually, poison ivy rash is at its worst one week after exposure. Unless you have a severe case of poison ivy, the rash should go away within one to two weeks. To relieve itching, try calamine lotion, an over-the-counter hydrocortisone cream, or antihistamine.