Facing a nuro problem. Throat problems.

Hello..my daughter's age 14 year...she is feeling pain sometimes back,face,chest,hand,feet means full body but the pain only stay 1 or 2 minutes in one spot..and then another...please help me in lockdown there is no good doctor available near me..please help.and also she is suffering from a throat problem ..we contact many doctors...finally the last E.N.T surgeon told us that the gum  of vocal cord which soothe our throat which was became dry...that's why when she start speaking the coughing was start....he prescribed voice therapy, stram inhalation,  overthinking.. He also prescribed a tablet of nurve(nectro 5 d hs) I am not satisfied because he didn't tell us why the nurve tablet was prescribed by him.. please tell me i am really ..can strees cause it because dhe was depressed because of her throat problems..and now for 1 month she started to feeling this pain..please guide me..please