I am is suffering with piles ,after going to the doctors I was pescribed anusol pessaries ,can you tell me whether you can be allergic to these only after having one I feels hot, lethargic and generally unwell, this feeling usually lasts for about 4hours . Yesterday 1 tried to cope without them because of this effect and didnt get any of these symptoms . Should he get back to the doctor or carry on with the medication? Iam 64 years old ,take low dosage for blood pressure.