I Have A Colon Condition Where Miralax Was Prescribed On

I have a colon condition where Miralax was prescribed on a daily basis. I'm 83 1/2 years old and have taken it daily for 1 and 1/2 years. It has been the answer for my condition. My question is: Can continuous use cause a dermatology reaction? I have noticed in the past few months that I have skin tags and various little outcroppings of skin issues.