For scorpion or snake bites:Read Surah fatiha 7 times and blow there
بِسْمِ اللَّهِ الرَّحْمَنِ الرَّحِيمِ
2الْحَمْدُ لِلَّهِ رَبِّ الْعَالَمِينَ
3الرَّحْمَنِ الرَّحِيمِ
4مَالِكِ يَوْمِ الدِّينِ
5إِيَّاكَ نَعْبُدُ وَإِيَّاكَ نَسْتَعِينُ
6اهْدِنَا الصِّرَاطَ الْمُسْتَقِيمَ
7صِرَاطَ الَّذِينَ أَنْعَمْتَ عَلَيْهِمْ غَيْرِ الْمَغْضُوبِ عَلَيْهِمْ وَلَا الضَّالِّينَ
(sahi sitta narrated by Abi saad)
Mix water and salt and rub where the scorpion or the snake has bitten and read surah al kaafiroon, surah falak and surah naas
READ MORE: 8 Traditional Islamic Medicine and Remedies Every Muslim Should Know
Once a scorpion bit the Holy Prophet (peace be upon him) while he was praying,after he had finished the salah he said ,”May Allah curse the scorpion,he neither leaves the one who is praying nor the one who isnt,”
then he brought some water and salt and rubbed them while reciting these surahs
(tibraani fil kabir narrated by ali peace be upon him)
You can also read this dua
bismillahi shajjatun qaraniyyatun milhatun bahr
( tibraani narrated by abdullah bin zaid)