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.
Except the feeling of itching on the affected skin of yours. And the poison ivy last on your skin depending on the degree of mild and severe effects. You have mild effects on your skin, and then poison ivy last from five to twelve days. If you adopt the immediate measures to treat your poison ivy, it will last for maximum of one week. But when you are suffering from severe effects , poison ivy last for one month or more than that.