You can use night or morning empty stomach..AC is not good to get effectiveness of medicine..so avoid AC

I have best treatment for this

Apply 2 drops of Anu Tailam in each nostrils preferably in morning. Before food

Better to use in morning and avoid to use in night before sleeping and ac use.

Do complete course of PureB 100 Tablet & PureB100 Syrup. Tablet: https://www.anupampharmaceutical.com/product-page/pure-b100-tablet Syrup: https://www.anupampharmaceutical.com/product-page/pure-b100-syrup

Use it in the morning time before food You will get mucous into mouth spit it out and wash the mouth and face with warm water Better to do the procedure after taking steam Avoid cold exposure

After using anutaila as nasal drops and sleeping in ac on ,is not advisable. Anu taila lubricates and leaves the required amount of moisture in the mucosa to fight against the microbes in the dust inhaled. If sleep or use ac after anutaila application,the AC air will dry the mucosa and the  moisture obtained is lost.so both are contradictory practices . Even any medicine for rhinitis is taken and Continue using ac,it will aggravate the condition ,rather than healing.

It's better to use in kapha kala that is in morning 6 am to 10 am For details can consult me