I would like to know how long you had been on Ramipril
can not be side effect of Ramipril after using it for many years.
Rash could be of other cause like allergy
/ insect bite.
Before withdrawing you from anti-hypertensive your doctor should have prescribed you other drug to control BP.
As your BP is 170/106, you have to take anti-hypertensive.
Consult other doctor for taking Anti-hypertensives.