Thanks for posting your query.
It seems from your query that the kind of chemicals used in the hair treatment is causing the problem. These chemicals can cause irritation, burning sensation and dizziness
.If these chemicals used in excess can cause local symptoms of irritation and burning and if get systemically absorbed can cause dilatation of vessels to cause fall in blood pressure, thence dizziness and headache.
You should not be worried about this. Over the areas of irritation you apply a soothing cream or calamine
lotion. The headache will subside in few hours as the drug will be excreted from the body. You drink of lime water wit pinch of salt in it for the same and relax yourself. Do take care to be careful when taking the treatment next time.
with best healthy hair and health wishes,
Dr Sanjay K Kanodia