Your local hairdresser will sell you a ph balanced professional conditioner (Ask for Loreals Aloe Vera for coloured hair) its green in colour and the creamiest available. Apply after shampooing, 3 good handfuls, and run fingers, spreading the conditioner, from root to ends. Put a polythene cap or carrier bag over scalp and towel over top to warm scalp for at least 20mins. Rinse off and hair will be really soft. The singed hair will in time snap off but conditioner will strengthen it till then.