it is reported from Sayyīdunā Anas raziallahu tala anhu
  that the Final Prophet sallallahu alaihi wasallam consented for seeking Dam [dʌm]

(spiritual treatment) in case of the evil eye, poisonous bites

and blisters/pimples. (Saḥīḥ Muslim, pp. 1206, Ḥadīš 2196)
On page 645 of Ashi’a-tul-Lam’āt (Persian), ‘Allāmaĥ Shaykh

‘Abdul Ḥaq Muḥaddiš Diĥlvī rehmatullahi tala alaih  writes in explanation

of this Ḥadīš: ‘Remember, performing Dam is permissible in

case of all ailments and afflictions – this (provision) is not

restricted to these three. These three have been mentioned

specifically as Dam is more fitting and effective for these as

A’lā Ḥaḍrat, Imām-e-Aĥl-e-Sunnat, ‘Allāmaĥ Maulānā Al-Ḥāj

Al-Ḥāfiẓ Al-Qārī Ash-Shaĥ Imām Aḥmad Razā Khān rehmatullahi tala alaih has stated on page 168 of Fatāwā Africa: There is nothing

wrong in the use of permissible amulets [Ta’wīżāt] which are

prepared from verses of Qurān, the grand names of Allah

or other invocations or supplications; in fact these are

Mustaḥab. The Beloved and Blessed Prophet sallallahu alaihi wasallam

meaning, ‘Whoever from

amongst you can benefit his Muslim brother he should do so.’(Saḥīḥ Muslim, pp. 1208, Ḥadīš 2199)